How To Fix SWF_RLS_001111 - Operator '&1': Unit of the left operand cannot be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RLS_001 - Condition Evaluation and Rule Evaluation

• Message number: 111

• Message text: Operator '&1': Unit of the left operand cannot be determined

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_RLS_001111 - Operator '&1': Unit of the left operand cannot be determined ?

  The SAP error message SWF_RLS_001111, which states "Operator '&1': Unit of the left operand cannot be determined," typically occurs in the context of workflow or business process management within SAP systems. This error indicates that the system is unable to determine the unit of measurement for the left operand in a calculation or comparison operation.
  Cause:
  
  Missing Unit of Measure: The most common cause is that the left operand in the operation does not have a defined unit of measure. This can happen if the data being processed is incomplete or incorrectly configured.
  Data Inconsistency: There may be inconsistencies in the data being used, such as missing or incorrect entries in the relevant master data (e.g., material master, vendor master).
  Configuration Issues: The configuration settings for the relevant business processes or workflows may not be set up correctly, leading to the inability to determine the unit of measure.
  Custom Code: If there is custom code involved in the workflow or process, it may not be handling units of measure correctly.
  
  Solution:
  
  Check Data Entries: Review the data entries for the left operand to ensure that a valid unit of measure is assigned. This may involve checking material master records, purchase orders, or other relevant data.
  Review Configuration: Ensure that the configuration settings for the relevant business processes are correctly set up. This may involve checking the settings in the SAP customizing (SPRO) related to units of measure.
  Debugging: If the error occurs in a custom workflow or program, consider debugging the code to identify where the unit of measure is not being set or passed correctly.
  Consult Documentation: Refer to SAP documentation or notes related to the specific transaction or process to see if there are known issues or additional configuration steps required.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it appears to be a bug or a more complex issue.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use transaction codes like SE80 (Object Navigator), SE37 (Function Module), or SWDD (Workflow Builder) to investigate the issue further.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  Unit of Measure Configuration: Familiarize yourself with how units of measure are configured in SAP, including the use of conversion factors and how they relate to different master data objects.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.