Message type: E = Error
Message class:  FINS_CFIN_APAR_MESSA - Central Payment Message Class 
Message number: 013
Message text: Select a mandate
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The SAP error message FINS_CFIN_APAR_MESSA013 with the description "Select a mandate" typically occurs in the context of the SAP Central Finance (CFIN) module, particularly when dealing with accounts payable and the processing of payment mandates.
Cause: This error usually arises when the system expects a payment mandate to be selected or specified, but none has been provided. A payment mandate is a legal authorization that allows a company to collect payments from a customer's bank account. The absence of a selected mandate can occur due to: Missing Mandate Data: The mandate data may not be set up or linked correctly in the system. Incorrect Configuration: The configuration settings for payment processing may not be correctly defined. User Input Error: The user may have overlooked selecting a mandate during the transaction process.
Solution: To resolve this error, you can take the following steps: Check Mandate Setup: Ensure that the payment mandates are correctly set up in the system. This includes
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