Message type: E = Error
Message class:  FKK_ID_SEPA - FICA loc. cross-country SEPA messages 
Message number: 013
Message text: Unknown record code &
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message FKK_ID_SEPA013 with the description "Unknown record code &" typically occurs in the context of the SEPA (Single Euro Payments Area) payment processing. This error indicates that the system has encountered a record code in the SEPA file that it does not recognize or that is not valid according to the SEPA format specifications.
Cause: Invalid Record Code: The record code in the SEPA file does not match any of the expected codes defined in the SAP system.
Configuration Issues: There may be a misconfiguration in the SEPA payment format settings in the SAP system. Data Entry Errors: Incorrect data entry or formatting issues in the payment data that is being processed. Version Mismatch: The SEPA file may be generated using a different version of the SEPA standard that is not supported by the current SAP configuration.
Solution: Check Record Codes: Review the SEPA file being processed and ensure that all record codes are
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FKK_ID_SEPA012 Start processing the file &
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FKK_ID_SEPA011 Lot & successfully created
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FKK_ID_SEPA014 Recipient & & - start processing
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FKK_ID_SEPA015  (sender bank/branch &/&, file creation date &, release &)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.