Message type: E = Error
Message class:  FI_E - Message Class for FM English Developers 
Message number: 088
Message text: Amounts not matching for payment term &1
The amount in the vendor line item for special payment &V1& is less
than the amount in the expense line items with materials (with or
without a P.O. reference) belonging to special category mapped to the
payment term &V1&.
The invoice document is not balanced and so cannot be posted.
The amount in the vendor line item should be at least equal to or
greater than the sum of the amounts in all the expense line items for
materials (with or without a P.O. reference) in the special category
mapped to the payment term &V1&. You need to adjust the
amount.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FI_E088 "Amounts not matching for payment term &1" typically occurs in the context of financial transactions, particularly when dealing with payment terms in accounts payable or accounts receivable. This error indicates that there is a discrepancy between the amounts that are expected based on the payment terms and the actual amounts being processed.
Cause: Mismatch in Payment Terms: The payment terms defined in the invoice or document do not match the expected amounts based on the terms. Incorrect Invoice Amount: The total amount of the invoice may not align with the amounts calculated based on the payment terms. Partial Payments: If a payment is being made that does not fully satisfy the invoice amount, it can lead to this error. Currency Differences: If there are currency conversions involved, discrepancies can arise due to exchange rates.
Configuration Issues: There may be issues with the configuration of payment terms in the system.
Solution: Check Payment Terms:
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