To save payment term "%(payment_term)s", you must append a last remainder line. To compute terms, you must append a remainder line on payment term "%(payment_term)s". The ratio and divisor are not consistent on line "%(line)s". You cannot erase party "%(party)s" while they have pending invoices with company "%(company)s". The taxes on invoice "%(invoice)s" are not valid, you must save it again to force them to be recalculated. To post invoice "%(invoice)s", you must define a sequence on fiscal year "%(fiscalyear)s". To number the invoice "%(invoice)s", you must set an accounting date after "%(date)s" because the sequence "%(sequence)s" has already been used for invoice "%(after_invoice)s". You cannot modify invoice "%(invoice)s" because it is posted, paid or cancelled. You cannot use the same account "%(account)s" on invoice "%(invoice)s" and on line "%(lines)s". To delete invoice "%(invoice)s" you must cancel it. You cannot delete invoice "%(invoice)s" because it has a number. You cannot cancel customer invoice "%(invoice)s" because it is posted and company setup does not allow it. Payment lines amount on invoice "%(invoice)s" can not be greater than the invoice amount. You cannot add/remove payment lines on paid invoice "%(invoice)s". You cannot refund invoice "%(invoice)s" because it is not posted. You cannot modify line "%(line)s" because its invoice "%(invoice)s" is posted, paid or cancelled. You cannot add a line to invoice "%(invoice)s" because it is posted, paid or cancelled. You cannot modify tax "%(tax)s" because its invoice "%(invoice)s" is posted, paid or cancelled. You cannot add a tax to invoice "%(invoice)s" because it is posted, paid or cancelled. You cannot add a partial payment on invoice "%(invoice)s" with an amount greater than the amount to pay "%(amount_to_pay)s". A payment line can be linked to only one invoice. The invoice "%(invoice)s" generates a payment date "%(date)s" in the past. To close the periods you must post the invoices "%(invoices)s".