Message type: E = Error
Message class:  BKK_PRENOTE - BCA : Prenotes 
Message number: 051
Message text: Enter a prenote reference number
You attempted to post a payment item but you did not enter a prenote
reference.
If this message has not been customized as a warning message, it is an
error message. This means that the system does not allow you to
continue, unless you force the posting.
If this is an error message, enter the prenote reference or force the
posting.
If this is a warning message, you can proceed without entering a prenote
reference number.
You can change the message type to a warning in Customizing for <ZK>Bank
Customer Accounts (IS-B-BCA)</>. Choose <LS>Tools -></>
<DS:SIMG.BCA_V_T100C>Change Message Control.</>
Error message extract from SAP system. Copyright SAP SE.
The SAP error message BKK_PRENOTE051 indicates that a prenote reference number is required but has not been provided. This error typically occurs in the context of the Bank Communication Management (BCM) or when processing payment transactions that involve prenotes, which are preliminary notifications sent to banks to verify account details before actual transactions are processed.
Cause: The error is triggered when: A transaction or process that requires a prenote reference number is initiated without providing this number. The prenote reference number is either missing or incorrectly entered in the relevant fields.
Solution: To resolve the BKK_PRENOTE051 error, you can take the following steps: Check the Transaction: Review the transaction or document that triggered the error. Ensure that you are in the correct screen or module where a prenote reference number is required. Enter the Prenote Reference Number: Navigate to the relevant field where the prenote reference number should be entered. Input a valid prenote reference number. This number is usually
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