How To Fix CRMS4_DATA_EXCH004 - Custom handler class &1 doesn't implement interface &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: CRMS4_DATA_EXCH - Service: Message Class for Data Exchange

• Message number: 004

• Message text: Custom handler class &1 doesn't implement interface &2.

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 CRMS4_DATA_EXCH004 - Custom handler class &1 doesn't implement interface &2. ?

  The SAP error message CRMS4_DATA_EXCH004 indicates that a custom handler class does not implement the required interface. This error typically arises in the context of SAP CRM (Customer Relationship Management) when there is an issue with the configuration or implementation of custom classes that are supposed to handle data exchange processes.
  
  Cause:
  
  Missing Interface Implementation: The custom handler class specified in the error message does not implement the interface that it is supposed to. This can happen if the class was not properly defined or if the interface was changed and the class was not updated accordingly.
  Incorrect Class Assignment: The class assigned in the configuration might not be the correct one or might not be intended for the specific data exchange process.
  Transport Issues: If the custom class was transported from one system to another, it might not have been transported correctly, leading to missing implementations.
  
  
  Solution:
  
  
  Check Class Implementation:
  
  Go to the ABAP Workbench (SE80)