How To Fix FKK_RTP015 - Prefixes for returns lot should be different

SAP Error Message - Details

• Message type: E = Error

• Message class: FKK_RTP -

• Message number: 015

• Message text: Prefixes for returns lot should be different

What causes this issue?

You entered the same value both for the <DS:DE.RTP_KEYR1_PREFIX_KK>key
prefix of a returns lot for payment documents</> and for the
<DS:DE.RTP_KEYR1_PO_PREFIX_KK>key prefix of a returns lot for payment
orders</>.
The prefixes have to be different so that the system can create unique
keys for returns lots.
You can only use the same prefixes if payment documents and payment
orders can never have the same numbers.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Decide if you need to change the prefix.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKK_RTP015 - Prefixes for returns lot should be different ?

  The SAP error message FKK_RTP015 indicates that there is an issue with the prefixes used for return lots in the SAP system. This error typically arises in the context of contract accounts receivable and payable (FI-CA) when processing returns or adjustments related to billing documents.
  Cause:
  The error occurs when the system detects that the prefixes for the return lots being processed are not distinct or are conflicting. In SAP, return lots are often identified by specific prefixes, and if two or more return lots share the same prefix, it can lead to confusion in processing and tracking.
  Solution:
  To resolve the FKK_RTP015 error, you can take the following steps:
  
  
  Check Return Lot Prefixes:
  
  Review the prefixes assigned to the return lots involved in the transaction. Ensure that they are unique and do not overlap with other return lots.
  
  
  
  Adjust Prefix Configuration:
  
  If necessary, adjust the configuration settings for return lot prefixes in the SAP system. This can typically be done in the customizing settings (SPRO) under the relevant FI-CA settings.
  
  
  
  Create New Return Lots:
  
  If the return lots are already created and cannot be modified, consider creating new return lots with unique prefixes.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidelines on managing return lots and their prefixes.
  
  
  
  Contact SAP Support:
  
  If the issue persists or if you are unsure about making changes, consider reaching out to SAP support or your internal SAP team for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP that deal with return lots and billing adjustments, such as FPL9 (Display Document) or FPL1 (Create Document).
  Customizing Settings: Understanding the customizing settings for FI-CA can help in managing prefixes effectively.
  User Exits and BAdIs: If your organization has custom developments, check if there are any user exits or BAdIs that might affect the processing of return lots.
  
  By ensuring that return lot prefixes are unique and properly configured, you should be able to resolve the FKK_RTP015 error and continue with your processing tasks in SAP.