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

SAP Error Message - Details

• 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

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_001221 - Reference element missing for token with index '&1' ?

  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 all reference elements are correctly defined and exist in the system.
  Validate Object Instances: Check the instances of the objects that the workflow is trying to access. Ensure that they are available and correctly configured.
  Recreate Missing Elements: If a reference element is missing, you may need to recreate it or restore it from a backup if it was deleted.
  Check Transport Logs: If the issue arose after a transport, check the transport logs for any errors or warnings that might indicate what went wrong.
  Debugging: Use the workflow debugging tools in SAP to trace the execution of the workflow and identify where the error occurs. This can help pinpoint the missing reference.
  Consult Documentation: Refer to SAP documentation or notes related to the specific workflow or error message for additional guidance.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SWI1 (Work Item Selection) or SWI2_FREQ (Work Item Analysis) to analyze workflow instances and their statuses.
  Workflow Logs: Check the workflow logs for more detailed error messages or warnings that can provide additional context.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches or updates.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.