52 lines
1.6 KiB
ReStructuredText
52 lines
1.6 KiB
ReStructuredText
******
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Design
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******
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The *Sale Advance Payment Module* introduces and extends the following
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concepts.
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.. _model-sale.advance_payment_term:
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Sale Advance Payment Term
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=========================
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The *Sale Advance Payment Term* specifies how the advance payment amount is
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calculated for a `Sale <model-sale.sale>`.
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This payment allows for the supply and shipping of the sale.
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.. seealso::
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Sale advance payment terms are created and managed from the main menu item:
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|Sales --> Configuration --> Advance Payment Terms|__
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.. |Sales --> Configuration --> Advance Payment Terms| replace:: :menuselection:`Sales --> Configuration --> Advance Payment Terms`
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__ https://demo.tryton.org/model/sale.advance_payment_term
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.. _model-sale.sale:
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Sale
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====
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When the *Sale Advance Payment Module* is activated, the `Sale
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<sale:model-sale.sale>` is extended to allow defining an `Advance Payment Term
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<model-sale.advance_payment_term>`.
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When the sale is quoted, the advance payment lines are calculated using this
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term.
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When the sale is processed an `Invoice <account_invoice:model-account.invoice>`
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is created for each advance payment line.
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The final invoice is generated when these advance payment invoices are paid.
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Previously paid amounts are deducted from the final invoice.
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.. warning::
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If an advance payment invoice is cancelled and not recreated when processing
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the exception.
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The condition of the cancelled invoice will be concidered as met.
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.. seealso::
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The `Sale <sale:model-sale.sale>` concept is introduced by the :doc:`Sale
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Module <sale:index>`.
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