How To Fix /ISDFPS/MM171 - BAdI '&1' must be implemented once only

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MM -

• Message number: 171

• Message text: BAdI '&1' must be implemented once only

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM171 - BAdI '&1' must be implemented once only ?

  The SAP error message /ISDFPS/MM171 BAdI '&1' must be implemented once only indicates that a Business Add-In (BAdI) has been implemented multiple times, which is not allowed. BAdIs are used in SAP to allow for enhancements to standard SAP applications without modifying the original code. Each BAdI can only have one active implementation at a time unless it is defined as multiple-use.
  
  Cause:
  
  Multiple Implementations: The most common cause of this error is that the BAdI has been implemented more than once in the system. This can happen if different developers or teams create their own implementations without checking existing ones.
  Transport Issues: Sometimes, if the BAdI implementation is transported from one system to another (e.g., from development to production), it may lead to conflicts if the same BAdI is already implemented in the target system.
  
  
  Solution:
  
  
  Check Existing Implementations:
  
  Go to transaction code SE19 (BAdI Implementation) or SE18 (BAdI Definition).
  Enter the name of the BAdI