diff --git a/modules/account_fr_chorus/CHANGELOG b/modules/account_fr_chorus/CHANGELOG
index 998e003f34..bfa7cfb0e8 100644
--- a/modules/account_fr_chorus/CHANGELOG
+++ b/modules/account_fr_chorus/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/account_fr_chorus/account.py b/modules/account_fr_chorus/account.py
index b8db96489c..8e86b3b4a8 100644
--- a/modules/account_fr_chorus/account.py
+++ b/modules/account_fr_chorus/account.py
@@ -19,7 +19,7 @@ from trytond.pool import Pool, PoolMeta
 from trytond.pyson import Bool, Eval, If
 from trytond.transaction import Transaction
 
-from .exceptions import InvoiceChorusValidationError
+from .exceptions import ChorusCredentialWarning, InvoiceChorusValidationError
 
 OAUTH_TOKEN_URL = {
     'service-qualif': 'https://sandbox-oauth.piste.gouv.fr/api/oauth/token',
@@ -163,6 +163,28 @@ class CredentialChorus(ModelSQL, CompanyValueMixin):
         resp.raise_for_status()
         return resp.json()
 
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for records, values in zip(actions, actions):
+            for record in records:
+                for field in [
+                        'chorus_piste_client_id', 'chorus_piste_client_secret',
+                        'chorus_login', 'chorus_password', 'chorus_service']:
+                    if (field in values
+                            and getattr(record, field)
+                            and getattr(record, field) != values[field]):
+                        warning_name = Warning.format(
+                            'chorus_credential', [record])
+                        if Warning.check(warning_name):
+                            raise ChorusCredentialWarning(
+                                warning_name,
+                                gettext('account_fr_chorus'
+                                    '.msg_chorus_credential_modified'))
+        return super().write(*args)
+
 
 class Invoice(metaclass=PoolMeta):
     __name__ = 'account.invoice'
diff --git a/modules/account_fr_chorus/exceptions.py b/modules/account_fr_chorus/exceptions.py
index 6e5031f7b6..c06cd15afb 100644
--- a/modules/account_fr_chorus/exceptions.py
+++ b/modules/account_fr_chorus/exceptions.py
@@ -1,8 +1,13 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
 
+from trytond.exceptions import UserWarning
 from trytond.model.exceptions import ValidationError
 
 
 class InvoiceChorusValidationError(ValidationError):
     pass
+
+
+class ChorusCredentialWarning(UserWarning):
+    pass
diff --git a/modules/account_fr_chorus/message.xml b/modules/account_fr_chorus/message.xml
index 5e704f43d2..4bf1f519f1 100644
--- a/modules/account_fr_chorus/message.xml
+++ b/modules/account_fr_chorus/message.xml
@@ -3,6 +3,9 @@
 this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data grouped="1">
+        <record model="ir.message" id="msg_chorus_credential_modified">
+            <field name="text">Are you sure you want to modify Chorus credentials?</field>
+        </record>
         <record model="ir.message" id="msg_invoice_unique">
             <field name="text">You can create only one Chorus invoice per invoice.</field>
         </record>
diff --git a/modules/account_payment_braintree/CHANGELOG b/modules/account_payment_braintree/CHANGELOG
index a7cd1f6e00..de0e1db524 100644
--- a/modules/account_payment_braintree/CHANGELOG
+++ b/modules/account_payment_braintree/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/account_payment_braintree/account.py b/modules/account_payment_braintree/account.py
index d05373784c..01f2b5263a 100644
--- a/modules/account_payment_braintree/account.py
+++ b/modules/account_payment_braintree/account.py
@@ -35,6 +35,7 @@ from trytond.wizard import (
     Button, StateAction, StateTransition, StateView, Wizard)
 
 from .common import BraintreeCustomerMethodMixin
+from .exceptions import BraintreeAccountWarning
 
 logger = logging.getLogger(__name__)
 
@@ -902,6 +903,22 @@ class PaymentBraintreeAccount(ModelSQL, ModelView):
             payment.braintree_update(transaction)
         return bool(payments)
 
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for accounts, values in zip(actions, actions):
+            if ({'environment', 'merchant_id', 'public_key', 'private_key'}
+                    & values.keys()):
+                warning_name = Warning.format('braintree_key', accounts)
+                if Warning.check(warning_name):
+                    raise BraintreeAccountWarning(
+                        warning_name,
+                        gettext('account_payment_braintree'
+                            '.msg_braintree_key_modified'))
+        return super().write(*args)
+
 
 class PaymentBraintreeCustomer(
         CheckoutMixin, DeactivableMixin, ModelSQL, ModelView):
diff --git a/modules/account_payment_braintree/exceptions.py b/modules/account_payment_braintree/exceptions.py
new file mode 100644
index 0000000000..de33e6f94c
--- /dev/null
+++ b/modules/account_payment_braintree/exceptions.py
@@ -0,0 +1,8 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.exceptions import UserWarning
+
+
+class BraintreeAccountWarning(UserWarning):
+    pass
diff --git a/modules/account_payment_braintree/message.xml b/modules/account_payment_braintree/message.xml
index 7768844bdd..e1bad42c55 100644
--- a/modules/account_payment_braintree/message.xml
+++ b/modules/account_payment_braintree/message.xml
@@ -3,6 +3,9 @@
 this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data grouped="1">
+        <record model="ir.message" id="msg_braintree_key_modified">
+            <field name="text">Are you sure you want to modify the keys of the Braintree account?</field>
+        </record>
         <record model="ir.message" id="msg_no_braintree_nonce">
             <field name="text">To process payment "%(payment)s" you must set a Braintree nonce or customer.</field>
         </record>
diff --git a/modules/account_payment_stripe/CHANGELOG b/modules/account_payment_stripe/CHANGELOG
index 41c3bff01e..ad4600d84e 100644
--- a/modules/account_payment_stripe/CHANGELOG
+++ b/modules/account_payment_stripe/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/account_payment_stripe/exceptions.py b/modules/account_payment_stripe/exceptions.py
new file mode 100644
index 0000000000..a048c6d9b4
--- /dev/null
+++ b/modules/account_payment_stripe/exceptions.py
@@ -0,0 +1,8 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.exceptions import UserWarning
+
+
+class StripeAccountWarning(UserWarning):
+    pass
diff --git a/modules/account_payment_stripe/message.xml b/modules/account_payment_stripe/message.xml
index 18cb20e3d8..5d0583cbda 100644
--- a/modules/account_payment_stripe/message.xml
+++ b/modules/account_payment_stripe/message.xml
@@ -3,6 +3,9 @@
 this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data grouped="1">
+        <record model="ir.message" id="msg_stripe_key_modified">
+            <field name="text">Are you sure you want to modify the keys of the Stripe account?</field>
+        </record>
         <record model="ir.message" id="msg_no_stripe_token">
             <field name="text">To process payment "%(payment)s" you must set a Stripe token or customer.</field>
         </record>
diff --git a/modules/account_payment_stripe/payment.py b/modules/account_payment_stripe/payment.py
index 0c936fc997..d39fe8d1f3 100644
--- a/modules/account_payment_stripe/payment.py
+++ b/modules/account_payment_stripe/payment.py
@@ -35,6 +35,7 @@ from trytond.wizard import (
     Button, StateAction, StateTransition, StateView, Wizard)
 
 from .common import StripeCustomerMethodMixin
+from .exceptions import StripeAccountWarning
 
 logger = logging.getLogger(__name__)
 stripe.max_network_retries = config.getint(
@@ -1314,6 +1315,21 @@ class Account(ModelSQL, ModelView):
                 account.webhook_identifier = uuid.uuid4().hex
         cls.save(accounts)
 
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for accounts, values in zip(actions, actions):
+            if {'secret_key', 'publishable_key'} & values.keys():
+                warning_name = Warning.format('stripe_key', accounts)
+                if Warning.check(warning_name):
+                    raise StripeAccountWarning(
+                        warning_name,
+                        gettext('account_payment_stripe'
+                            '.msg_stripe_key_modified'))
+        return super().write(*args)
+
 
 class Customer(CheckoutMixin, DeactivableMixin, ModelSQL, ModelView):
     "Stripe Customer"
diff --git a/modules/currency_rs/CHANGELOG b/modules/currency_rs/CHANGELOG
index e50a9807d2..b7278dc495 100644
--- a/modules/currency_rs/CHANGELOG
+++ b/modules/currency_rs/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/currency_rs/currency.py b/modules/currency_rs/currency.py
index f53bf3208e..3e874b63b4 100644
--- a/modules/currency_rs/currency.py
+++ b/modules/currency_rs/currency.py
@@ -8,11 +8,14 @@ from zeep.exceptions import Error
 
 from trytond.cache import Cache
 from trytond.config import config
+from trytond.i18n import gettext
 from trytond.model import fields
 from trytond.modules.currency.currency import CronFetchError
-from trytond.pool import PoolMeta
+from trytond.pool import Pool, PoolMeta
 from trytond.pyson import Eval, If
 
+from .exceptions import RSCredentialWarning
+
 URL = (
     'https://webservices.nbs.rs/CommunicationOfficeService1_0/'
     'ExchangeRateXmlService.asmx?WSDL')
@@ -95,3 +98,18 @@ class Cron(metaclass=PoolMeta):
                 Decimal(r.Unit.text) / Decimal(r.MiddleRate.text))
             for r in data.iterchildren()
             if r.Date == date.strftime('%d.%m.%Y')}
+
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for crons, values in zip(actions, actions):
+            if ({'rs_username', 'rs_password', 'rs_license_id'}
+                    & values.keys()):
+                warning_name = Warning.format('rs_credential', crons)
+                if Warning.check(warning_name):
+                    raise RSCredentialWarning(
+                        warning_name,
+                        gettext('currency_rs.msg_rs_credential_modified'))
+        return super().write(*args)
diff --git a/modules/currency_rs/exceptions.py b/modules/currency_rs/exceptions.py
new file mode 100644
index 0000000000..5e278ec2fe
--- /dev/null
+++ b/modules/currency_rs/exceptions.py
@@ -0,0 +1,8 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.exceptions import UserWarning
+
+
+class RSCredentialWarning(UserWarning):
+    pass
diff --git a/modules/currency_rs/message.xml b/modules/currency_rs/message.xml
new file mode 100644
index 0000000000..c4fa56172f
--- /dev/null
+++ b/modules/currency_rs/message.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tryton>
+    <data grouped="1">
+        <record model="ir.message" id="msg_rs_credential_modified">
+            <field name="text">Are you sure you want to modify Serbian National Bank credentials?</field>
+        </record>
+    </data>
+</tryton>
diff --git a/modules/document_incoming_ocr_typless/CHANGELOG b/modules/document_incoming_ocr_typless/CHANGELOG
index a9b0756a09..4f47f21df3 100644
--- a/modules/document_incoming_ocr_typless/CHANGELOG
+++ b/modules/document_incoming_ocr_typless/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/document_incoming_ocr_typless/document.py b/modules/document_incoming_ocr_typless/document.py
index 2b9c8bde67..adf6e1f853 100644
--- a/modules/document_incoming_ocr_typless/document.py
+++ b/modules/document_incoming_ocr_typless/document.py
@@ -9,10 +9,10 @@ import requests
 
 from trytond.i18n import gettext
 from trytond.model import fields
-from trytond.pool import PoolMeta
+from trytond.pool import Pool, PoolMeta
 from trytond.pyson import Eval
 
-from .exceptions import TyplessError
+from .exceptions import TyplessCredentialWarning, TyplessError
 
 MIME_TYPES = {
     'application/pdf',
@@ -320,3 +320,18 @@ class IncomingOCRService(metaclass=PoolMeta):
                 return ''
         elif name == 'vat_rate_net':
             return str(line.base)
+
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for services, values in zip(actions, actions):
+            if 'typless_api_key' in values.keys():
+                warning_name = Warning.format('typless_credential', services)
+                if Warning.check(warning_name):
+                    raise TyplessCredentialWarning(
+                        warning_name,
+                        gettext('document_incoming_ocr_typless'
+                            '.msg_typless_credential_modified'))
+        return super().write(*args)
diff --git a/modules/document_incoming_ocr_typless/exceptions.py b/modules/document_incoming_ocr_typless/exceptions.py
index 0d77cf5ec7..8f7d0cc41f 100644
--- a/modules/document_incoming_ocr_typless/exceptions.py
+++ b/modules/document_incoming_ocr_typless/exceptions.py
@@ -1,8 +1,12 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
 
-from trytond.exceptions import UserError
+from trytond.exceptions import UserError, UserWarning
 
 
 class TyplessError(UserError):
     pass
+
+
+class TyplessCredentialWarning(UserWarning):
+    pass
diff --git a/modules/document_incoming_ocr_typless/message.xml b/modules/document_incoming_ocr_typless/message.xml
index 9d7b4c264e..2c2aafa453 100644
--- a/modules/document_incoming_ocr_typless/message.xml
+++ b/modules/document_incoming_ocr_typless/message.xml
@@ -3,6 +3,9 @@
 this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data grouped="1">
+        <record model="ir.message" id="msg_typless_credential_modified">
+            <field name="text">Are you sure you want to modify Typless credentials?</field>
+        </record>
         <record model="ir.message" id="msg_typless_webserver_error">
             <field name="text">Typless webservice call failed with the following error message:
 %(message)s</field>
diff --git a/modules/stock_package_shipping_dpd/CHANGELOG b/modules/stock_package_shipping_dpd/CHANGELOG
index 3850a8881f..49aec21076 100644
--- a/modules/stock_package_shipping_dpd/CHANGELOG
+++ b/modules/stock_package_shipping_dpd/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/stock_package_shipping_dpd/carrier.py b/modules/stock_package_shipping_dpd/carrier.py
index a1025d5711..941cc4422f 100644
--- a/modules/stock_package_shipping_dpd/carrier.py
+++ b/modules/stock_package_shipping_dpd/carrier.py
@@ -8,11 +8,11 @@ from zeep.exceptions import Fault
 from trytond.i18n import gettext
 from trytond.model import (
     MatchMixin, ModelSQL, ModelView, fields, sequence_ordered)
-from trytond.pool import PoolMeta
+from trytond.pool import Pool, PoolMeta
 from trytond.pyson import Eval
 
 from .configuration import LOGIN_SERVICE, get_client
-from .exceptions import DPDError
+from .exceptions import DPDCredentialWarning, DPDError
 
 
 class CredentialDPD(sequence_ordered(), ModelSQL, ModelView, MatchMixin):
@@ -52,6 +52,21 @@ class CredentialDPD(sequence_ordered(), ModelSQL, ModelView, MatchMixin):
         self.depot = result.depot
         self.save()
 
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for credentials, values in zip(actions, actions):
+            if {'user_id', 'password', 'server'} & values.keys():
+                warning_name = Warning.format('dpd_credential', credentials)
+                if Warning.check(warning_name):
+                    raise DPDCredentialWarning(
+                        warning_name,
+                        gettext('stock_package_shipping_dpd'
+                            '.msg_dpd_credential_modified'))
+        return super().write(*args)
+
 
 class Carrier(metaclass=PoolMeta):
     __name__ = 'carrier'
diff --git a/modules/stock_package_shipping_dpd/exceptions.py b/modules/stock_package_shipping_dpd/exceptions.py
index d3cb0d2c64..d8d1b03b91 100644
--- a/modules/stock_package_shipping_dpd/exceptions.py
+++ b/modules/stock_package_shipping_dpd/exceptions.py
@@ -1,8 +1,12 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
 
-from trytond.exceptions import UserError
+from trytond.exceptions import UserError, UserWarning
 
 
 class DPDError(UserError):
     pass
+
+
+class DPDCredentialWarning(UserWarning):
+    pass
diff --git a/modules/stock_package_shipping_dpd/message.xml b/modules/stock_package_shipping_dpd/message.xml
index 94ec63fc0e..1106af8ec7 100644
--- a/modules/stock_package_shipping_dpd/message.xml
+++ b/modules/stock_package_shipping_dpd/message.xml
@@ -3,6 +3,9 @@
 this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data grouped="1">
+        <record model="ir.message" id="msg_dpd_credential_modified">
+            <field name="text">Are you sure you want to modify DPD credentials?</field>
+        </record>
         <record model="ir.message" id="msg_dpd_webservice_error">
             <field name="text">DPD webservice call failed with the following error message:
 %(message)s</field>
diff --git a/modules/stock_package_shipping_mygls/CHANGELOG b/modules/stock_package_shipping_mygls/CHANGELOG
index 9c6bb179ea..4d37f85eca 100644
--- a/modules/stock_package_shipping_mygls/CHANGELOG
+++ b/modules/stock_package_shipping_mygls/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/stock_package_shipping_mygls/carrier.py b/modules/stock_package_shipping_mygls/carrier.py
index 3b0d680cfe..5474031fef 100644
--- a/modules/stock_package_shipping_mygls/carrier.py
+++ b/modules/stock_package_shipping_mygls/carrier.py
@@ -1,10 +1,13 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
+from trytond.i18n import gettext
 from trytond.model import (
     MatchMixin, ModelSQL, ModelView, fields, sequence_ordered)
-from trytond.pool import PoolMeta
+from trytond.pool import Pool, PoolMeta
 from trytond.pyson import Eval, If
 
+from .exceptions import MyGLSCredentialWarning
+
 
 class CredentialMyGLS(sequence_ordered(), ModelSQL, ModelView, MatchMixin):
     "MyGLS Credential"
@@ -31,6 +34,22 @@ class CredentialMyGLS(sequence_ordered(), ModelSQL, ModelView, MatchMixin):
     def default_server(cls):
         return 'testing'
 
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for credentials, values in zip(actions, actions):
+            if ({'server', 'username', 'password', 'client_number'}
+                    & values.keys()):
+                warning_name = Warning.format('mygls_credential', credentials)
+                if Warning.check(warning_name):
+                    raise MyGLSCredentialWarning(
+                        warning_name,
+                        gettext('stock_package_shipping_mygls'
+                            '.msg_mygls_credential_modified'))
+        return super().write(*args)
+
 
 class Carrier(metaclass=PoolMeta):
     __name__ = 'carrier'
diff --git a/modules/stock_package_shipping_mygls/exceptions.py b/modules/stock_package_shipping_mygls/exceptions.py
index 5da7ef4d7a..d0c7f59c76 100644
--- a/modules/stock_package_shipping_mygls/exceptions.py
+++ b/modules/stock_package_shipping_mygls/exceptions.py
@@ -1,7 +1,11 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-from trytond.exceptions import UserError
+from trytond.exceptions import UserError, UserWarning
 
 
 class MyGLSError(UserError):
     pass
+
+
+class MyGLSCredentialWarning(UserWarning):
+    pass
diff --git a/modules/stock_package_shipping_mygls/message.xml b/modules/stock_package_shipping_mygls/message.xml
index 3e3fb4f76d..52e8f4ed2e 100644
--- a/modules/stock_package_shipping_mygls/message.xml
+++ b/modules/stock_package_shipping_mygls/message.xml
@@ -3,6 +3,9 @@
 this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data grouped="1">
+        <record model="ir.message" id="msg_mygls_credential_modified">
+            <field name="text">Are you sure you want to modify MyGLS credentials?</field>
+        </record>
         <record model="ir.message" id="msg_warehouse_address_required">
             <field name="text">To validate shipment "%(shipment)s" you must set an address on warehouse "%(warehouse)s".</field>
         </record>
diff --git a/modules/stock_package_shipping_sendcloud/CHANGELOG b/modules/stock_package_shipping_sendcloud/CHANGELOG
index 9c6bb179ea..4d37f85eca 100644
--- a/modules/stock_package_shipping_sendcloud/CHANGELOG
+++ b/modules/stock_package_shipping_sendcloud/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/stock_package_shipping_sendcloud/carrier.py b/modules/stock_package_shipping_sendcloud/carrier.py
index e66feadbc8..70db3a1bf9 100644
--- a/modules/stock_package_shipping_sendcloud/carrier.py
+++ b/modules/stock_package_shipping_sendcloud/carrier.py
@@ -10,11 +10,11 @@ from trytond.config import config
 from trytond.i18n import gettext
 from trytond.model import (
     MatchMixin, ModelSQL, ModelView, fields, sequence_ordered)
-from trytond.pool import PoolMeta
+from trytond.pool import Pool, PoolMeta
 from trytond.protocols.wrappers import HTTPStatus
 from trytond.pyson import Eval
 
-from .exceptions import SendcloudError
+from .exceptions import SendcloudCredentialWarning, SendcloudError
 
 SENDCLOUD_API_URL = 'https://panel.sendcloud.sc/api/v2/'
 TIMEOUT = config.getfloat(
@@ -171,6 +171,22 @@ class CredentialSendcloud(sequence_ordered(), ModelSQL, ModelView, MatchMixin):
         response.raise_for_status()
         return response.content
 
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for credentials, values in zip(actions, actions):
+            if {'public_key', 'secret_key'} & values.keys():
+                warning_name = Warning.format(
+                    'sendcloud_credential', credentials)
+                if Warning.check(warning_name):
+                    raise SendcloudCredentialWarning(
+                        warning_name,
+                        gettext('stock_package_shipping_sendcloud'
+                            '.msg_sendcloud_credential_modified'))
+        return super().write(*args)
+
 
 class SendcloudAddress(sequence_ordered(), ModelSQL, ModelView, MatchMixin):
     "Sendcloud Address"
diff --git a/modules/stock_package_shipping_sendcloud/exceptions.py b/modules/stock_package_shipping_sendcloud/exceptions.py
index 718b43637b..49279772c3 100644
--- a/modules/stock_package_shipping_sendcloud/exceptions.py
+++ b/modules/stock_package_shipping_sendcloud/exceptions.py
@@ -1,8 +1,12 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
 
-from trytond.exceptions import UserError
+from trytond.exceptions import UserError, UserWarning
 
 
 class SendcloudError(UserError):
     pass
+
+
+class SendcloudCredentialWarning(UserWarning):
+    pass
diff --git a/modules/stock_package_shipping_sendcloud/message.xml b/modules/stock_package_shipping_sendcloud/message.xml
index 763793b4cf..1f560729cb 100644
--- a/modules/stock_package_shipping_sendcloud/message.xml
+++ b/modules/stock_package_shipping_sendcloud/message.xml
@@ -3,6 +3,9 @@
 this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data grouped="1">
+        <record model="ir.message" id="msg_sendcloud_credential_modified">
+            <field name="text">Are you sure you want to modify Sendcloud credentials?</field>
+        </record>
         <record model="ir.message" id="msg_sendcloud_webserver_error">
             <field name="text">Sendcloud webservice call failed with the following error message:
 %(message)s</field>
diff --git a/modules/stock_package_shipping_ups/CHANGELOG b/modules/stock_package_shipping_ups/CHANGELOG
index c90ba7ef32..28dba106aa 100644
--- a/modules/stock_package_shipping_ups/CHANGELOG
+++ b/modules/stock_package_shipping_ups/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/stock_package_shipping_ups/carrier.py b/modules/stock_package_shipping_ups/carrier.py
index 0d13c91d56..8da74c52ac 100644
--- a/modules/stock_package_shipping_ups/carrier.py
+++ b/modules/stock_package_shipping_ups/carrier.py
@@ -4,11 +4,14 @@
 from oauthlib.oauth2 import BackendApplicationClient
 from requests_oauthlib import OAuth2Session
 
+from trytond.i18n import gettext
 from trytond.model import (
     MatchMixin, ModelSQL, ModelView, fields, sequence_ordered)
-from trytond.pool import PoolMeta
+from trytond.pool import Pool, PoolMeta
 from trytond.pyson import Eval
 
+from .exceptions import UPSCredentialWarning
+
 
 class CredentialUPS(sequence_ordered(), ModelSQL, ModelView, MatchMixin):
     'UPS Credential'
@@ -61,6 +64,22 @@ class CredentialUPS(sequence_ordered(), ModelSQL, ModelView, MatchMixin):
         else:
             return 'https://wwwcie.ups.com/api/shipments/v1/ship'
 
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for credentials, values in zip(actions, actions):
+            if ({'client_id', 'client_secret', 'account_number'}
+                    & values.keys()):
+                warning_name = Warning.format('dpd_credential', credentials)
+                if Warning.check(warning_name):
+                    raise UPSCredentialWarning(
+                        warning_name,
+                        gettext('stock_package_shipping_ups'
+                            '.msg_ups_credential_modified'))
+        return super().write(*args)
+
 
 class Carrier(metaclass=PoolMeta):
     __name__ = 'carrier'
diff --git a/modules/stock_package_shipping_ups/exceptions.py b/modules/stock_package_shipping_ups/exceptions.py
index 5ef681f84d..620a4bc5ce 100644
--- a/modules/stock_package_shipping_ups/exceptions.py
+++ b/modules/stock_package_shipping_ups/exceptions.py
@@ -1,8 +1,12 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
 
-from trytond.exceptions import UserError
+from trytond.exceptions import UserError, UserWarning
 
 
 class UPSError(UserError):
     pass
+
+
+class UPSCredentialWarning(UserWarning):
+    pass
diff --git a/modules/stock_package_shipping_ups/message.xml b/modules/stock_package_shipping_ups/message.xml
index 2bb8d0487c..10c844a4ca 100644
--- a/modules/stock_package_shipping_ups/message.xml
+++ b/modules/stock_package_shipping_ups/message.xml
@@ -3,6 +3,9 @@
 this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data grouped="1">
+        <record model="ir.message" id="msg_ups_credential_modified">
+            <field name="text">Are you sure you want to modify UPS credentials?</field>
+        </record>
         <record model="ir.message" id="msg_ups_webservice_error">
             <field name="text">UPS webservice call failed with the following error message:
 %(message)s</field>
diff --git a/modules/web_shop_shopify/CHANGELOG b/modules/web_shop_shopify/CHANGELOG
index fa45c409d6..183c227c4d 100644
--- a/modules/web_shop_shopify/CHANGELOG
+++ b/modules/web_shop_shopify/CHANGELOG
@@ -1,3 +1,4 @@
+* Warn when changing credential
 
 Version 7.2.0 - 2024-04-29
 --------------------------
diff --git a/modules/web_shop_shopify/exceptions.py b/modules/web_shop_shopify/exceptions.py
index 6f073fdb84..1223225180 100644
--- a/modules/web_shop_shopify/exceptions.py
+++ b/modules/web_shop_shopify/exceptions.py
@@ -1,7 +1,11 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-from trytond.exceptions import UserError
+from trytond.exceptions import UserError, UserWarning
 
 
 class ShopifyError(UserError):
     pass
+
+
+class ShopifyCredentialWarning(UserWarning):
+    pass
diff --git a/modules/web_shop_shopify/message.xml b/modules/web_shop_shopify/message.xml
index 80e03fb836..400ba36c1d 100644
--- a/modules/web_shop_shopify/message.xml
+++ b/modules/web_shop_shopify/message.xml
@@ -3,6 +3,9 @@
 this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data grouped="1">
+        <record model="ir.message" id="msg_shopify_credential_modified">
+            <field name="text">Are you sure you want to modify Shopify credentials?</field>
+        </record>
         <record model="ir.message" id="msg_shopify_identifier">
             <field name="text">Shopify Identifier</field>
         </record>
diff --git a/modules/web_shop_shopify/web.py b/modules/web_shop_shopify/web.py
index 5551066273..be83be7638 100644
--- a/modules/web_shop_shopify/web.py
+++ b/modules/web_shop_shopify/web.py
@@ -20,7 +20,7 @@ from trytond.transaction import Transaction
 from trytond.url import http_host
 
 from .common import IdentifierMixin, IdentifiersMixin
-from .exceptions import ShopifyError
+from .exceptions import ShopifyCredentialWarning, ShopifyError
 
 EDIT_ORDER_DELAY = dt.timedelta(days=60 + 1)
 
@@ -580,6 +580,23 @@ class Shop(metaclass=PoolMeta):
         Amendment._clear_sale(to_update.keys())
         Sale.__queue__.process(to_update.keys())
 
+    @classmethod
+    def write(cls, *args):
+        pool = Pool()
+        Warning = pool.get('res.user.warning')
+        actions = iter(args)
+        for shops, values in zip(actions, actions):
+            if ({'shopify_url', 'shopify_password',
+                    'shopify_webhook_shared_secret'}
+                    & values.keys()):
+                warning_name = Warning.format('shopify_credential', shops)
+                if Warning.check(warning_name):
+                    raise ShopifyCredentialWarning(
+                        warning_name,
+                        gettext('web_shop_shopify'
+                            '.msg_shopidy_credential_modified'))
+        return super().write(*args)
+
 
 class ShopShopifyIdentifier(IdentifierMixin, ModelSQL, ModelView):
     "Shopify Identifier"