How To Fix TPM_TRL371 - PMP derivation: source position for &1 &2 not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: TPM_TRL - Messages Class Treasury Ledger

• Message number: 371

• Message text: PMP derivation: source position for &1 &2 not unique

What causes this issue?

The indicator to copy the position management procedure assignment from
the source valuation area to the new valuation area is set. However, the
system cannot identify a unique source position in valuation area &v3&
for position &v1& &V2&.

System Response

The system is deriving the position management procedure using the
standard configuration. The position management procedure in the source
valuation area will not be considered.

How to fix this error?

Review the position management procedure in the initialization step
'Change Position Mgmt Procedures and Act Assignment Ref.' and adjust if
necessary.

Procedure for System Administrators

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message TPM_TRL371 - PMP derivation: source position for &1 &2 not unique ?

  The SAP error message TPM_TRL371 indicates that there is an issue with the derivation of the position in the context of the Portfolio Management (PMP) module. Specifically, it suggests that the source position for the specified object (indicated by &1 and &2) is not unique, which means that the system has found multiple entries that match the criteria for the derivation process.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that there are multiple positions in the system that match the criteria for the derivation, leading to ambiguity.
  Configuration Issues: There may be issues with the configuration of the derivation rules or the underlying data model that are causing the system to find multiple valid source positions.
  Data Integrity Issues: There could be data integrity issues in the master data or transaction data that lead to multiple entries being considered valid.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Review the positions in the system that correspond to the criteria being used for the derivation. Look for any duplicate entries that may be causing the issue.
  Use transaction codes like TPM1 or TPM2 to view and analyze the positions.
  
  
  
  Adjust Derivation Rules:
  
  If the derivation rules are too broad, consider refining them to ensure that they point to a unique source position.
  Review the configuration settings in the relevant customizing transactions to ensure they are set up correctly.
  
  
  
  Data Cleanup:
  
  If duplicates are found, determine which entries are valid and remove or consolidate the duplicates as necessary.
  Ensure that the master data is clean and consistent to prevent similar issues in the future.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the TPM module for any specific guidance on handling this error.
  
  
  
  Testing:
  
  After making changes, test the derivation process again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as TPM1, TPM2, and TPM3 for managing positions and transactions in the Portfolio Management module.
  SAP Notes: Check for any SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  By addressing the root cause of the non-unique source position, you should be able to resolve the TPM_TRL371 error and ensure smooth operation within the SAP system.