How To Fix SWF_EXP_001204 - Byte code contains invalid unit '&1'

SWF_EXP_001204 - Overview

• Message type: E = Error

• Message class: SWF_EXP_001 - Expression Service Messages

• Message number: 204

• Message text: Byte code contains invalid unit '&1'

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 SWF_EXP_001204 - Byte code contains invalid unit '&1' ?

  The SAP error message SWF_EXP_001204 indicates that there is an issue with the byte code in a workflow, specifically that it contains an invalid unit represented by &1. This error typically arises in the context of SAP Business Workflow when there is a problem with the workflow definition or the underlying code that is being executed.
  
  Cause:
  
  Invalid Unit Reference: The error suggests that there is a reference to a unit that is not recognized or is incorrectly defined in the workflow.
  Corrupted Workflow: The workflow definition may be corrupted or not properly activated.
  Inconsistent Data: There may be inconsistencies in the data being processed by the workflow, leading to invalid references.
  Transport Issues: If the workflow was transported from one system to another, there may be missing dependencies or incorrect configurations.
  
  
  Solution:
  
  Check Workflow Definition: Review the workflow definition in transaction SWDD (Workflow Builder) to ensure that all units and references are correctly defined and activated.
  Rebuild