How To Fix PM171 - Posting key not defined in table T030B; termination

SAP Error Message - Details

• Message type: E = Error

• Message class: PM - Extended Payment Functions

• Message number: 171

• Message text: Posting key not defined in table T030B; termination

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PM171 - Posting key not defined in table T030B; termination ?

  The SAP error message PM171, which states "Posting key not defined in table T030B; termination," typically occurs when there is an issue with the configuration of posting keys in the SAP system. Posting keys are essential for defining the type of transaction being processed, such as whether it is a debit or credit, and they are stored in the T030B table.
  Cause:
  
  Missing Posting Key: The posting key you are trying to use is not defined in the T030B table. This can happen if the posting key has not been created or if it has been deleted.
  Incorrect Configuration: There may be an issue with the configuration of the financial accounting (FI) or controlling (CO) modules where the posting key is supposed to be defined.
  Custom Development: If there are custom developments or enhancements that reference a posting key that is not defined, this can lead to the error.
  
  Solution:
  
  
  Check Posting Key Configuration:
  
  Go to transaction code OB14 (or SPRO -> Financial Accounting -> General Ledger Accounting -> Document Entry -> Define Posting Keys) to check if the posting key in question is defined.
  If it is missing, you may need to create it or restore it if it was deleted.
  
  
  
  Review T030B Table:
  
  You can use transaction code SE16N to view the T030B table and check if the posting key exists.
  If it does not exist, you will need to create it with the appropriate settings.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or configuration guides related to posting keys to ensure that you are following the correct procedures.
  
  
  
  Check for Custom Code:
  
  If there are custom programs or enhancements that reference the posting key, review the code to ensure it is using valid posting keys.
  
  
  
  Transport Requests:
  
  If the issue arose after a transport request, ensure that all necessary objects were transported correctly and that the target system has the same configuration as the source system.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is a production environment.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  OB14: Define Posting Keys
  SE16N: Table Display
  SPRO: SAP Reference IMG
  
  
  Tables:
  
  T030B: Contains the definitions of posting keys.
  
  
  Documentation: SAP Help Portal and community forums can provide additional insights and troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the PM171 error and implement a solution to resolve it.