How To Fix SWF_CPWF_001001 - Callback class '&1' doesn't implement interface IF_SWF_CPWF_CALLBACK

SWF_CPWF_001001 - Overview

• Message type: E = Error

• Message class: SWF_CPWF_001 - CP workflow integration API messages

• Message number: 001

• Message text: Callback class '&1' doesn't implement interface IF_SWF_CPWF_CALLBACK

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_CPWF_001001 - Callback class '&1' doesn't implement interface IF_SWF_CPWF_CALLBACK ?

  The SAP error message SWF_CPWF_001001 indicates that a callback class specified in a workflow does not implement the required interface IF_SWF_CPWF_CALLBACK. This is a common issue when working with SAP Business Workflow and can arise due to various reasons. Below are the causes, solutions, and related information for this error.
  Cause
  
  Missing Interface Implementation: The specified callback class does not implement the interface IF_SWF_CPWF_CALLBACK. This interface is necessary for the workflow to interact with the callback class correctly.
  Incorrect Class Assignment: The class assigned in the workflow might be incorrect or not intended for the specific workflow task.
  Transport Issues: If the class was transported from another system, it might not have been transported correctly, leading to missing implementations.
  Development Errors: There may be a coding error in the callback class that prevents it from implementing the interface properly.
  
  Solution
  
  
  Check Class Implementation:
  
  Go to the ABAP Workbench (SE80 or SE24) and check the implementation of the callback