How To Fix SWF_EXP_001201 - Byte code &1 cannot be executed

SWF_EXP_001201 - Overview

• Message type: E = Error

• Message class: SWF_EXP_001 - Expression Service Messages

• Message number: 201

• Message text: Byte code &1 cannot be executed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_EXP_001201 - Byte code &1 cannot be executed ?

  The SAP error message SWF_EXP_001201 indicates that there is an issue with executing a specific bytecode in the SAP Workflow environment. This error typically arises when the workflow engine encounters bytecode that it cannot interpret or execute, which can be due to various reasons.
  Causes:
  
  Corrupted Workflow Definition: The workflow definition may be corrupted or not properly activated.
  Incompatible Changes: Changes made to the workflow or its components (like tasks, containers, etc.) that are not compatible with the existing bytecode.
  Missing or Incomplete Transport: If the workflow was transported from one system to another, some components may be missing or not properly imported.
  Version Mismatch: The bytecode may have been generated in a different version of the SAP system or with different settings.
  Custom Code Issues: If there are custom developments or enhancements in the workflow, they may not be functioning correctly.
  
  Solutions:
  
  Re-activate the Workflow: Go to the workflow definition in the SAP GUI and re-activate it.