How To Fix SWF_EXP_001221 - Reference element missing for token with index '&1'

SWF_EXP_001221 - Overview

• Message type: E = Error

• Message class: SWF_EXP_001 - Expression Service Messages

• Message number: 221

• Message text: Reference element missing for token with index '&1'

Self-Explanatory Message

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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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SWF_EXP_001221 - Details

• The SAP error message SWF_EXP_001221 indicates that there is a missing reference element for a token in a workflow. This typically occurs in the context of SAP Business Workflow, where a workflow instance is trying to access a reference element that is not available or has not been defined correctly.
  
  Cause:
  
  Missing Reference Element: The workflow is trying to access a reference element (like a task, object, or data) that does not exist or has been deleted.
  Incorrect Workflow Configuration: There may be an issue with the configuration of the workflow, such as incorrect binding of elements or missing definitions.
  Data Consistency Issues: If the underlying data or objects that the workflow relies on have been changed or deleted, it can lead to this error.
  Transport Issues: If the workflow was transported from one system to another, there may be inconsistencies in the objects or references.
  
  
  Solution:
  
  Check Workflow Definition: Review the workflow definition to ensure that