How To Fix PYD_FND108 - Transaction type cannot be changed if transaction instances already exist

SAP Error Message - Details

• Message type: E = Error

• Message class: PYD_FND - Payroll Data Source Framework

• Message number: 108

• Message text: Transaction type cannot be changed if transaction instances already exist

Self-Explanatory Message

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PYD_FND108 - Transaction type cannot be changed if transaction instances already exist ?

  The SAP error message PYD_FND108, which states "Transaction type cannot be changed if transaction instances already exist," typically occurs in the context of payroll or financial transactions within the SAP system. This error indicates that you are attempting to change the transaction type of a payroll or financial transaction that already has existing instances in the system. 
  
  Cause:
  
  Existing Transaction Instances: The primary cause of this error is that there are already recorded instances of the transaction type you are trying to change. SAP does not allow changes to the transaction type once instances have been created to maintain data integrity and consistency.
  Configuration Changes: You may be trying to modify the configuration settings for a transaction type that is already in use, which is not permitted.
  
  
  Solution:
  
  Check Existing Instances: Before attempting to change the transaction type, check if there are any existing instances of that transaction type. You can do this by