How To Fix SWF_BND_001072 - Expressions '&1' and '&2' are not compatible

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_BND_001 - Messages for workflow binding class

• Message number: 072

• Message text: Expressions '&1' and '&2' are not compatible

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_BND_001072 - Expressions '&1' and '&2' are not compatible ?

  The SAP error message SWF_BND_001072 indicates that there is a compatibility issue between two expressions in a workflow binding. This typically occurs when the data types or structures of the expressions being compared or assigned do not match.
  Cause:
  
  Data Type Mismatch: The most common cause is that the two expressions being compared or bound have different data types. For example, one expression might be a string while the other is an integer.
  Incompatible Structures: If the expressions are complex types (like structures or tables), they may not have the same fields or types, leading to incompatibility.
  Incorrect Binding: The binding configuration in the workflow might be incorrectly set up, leading to mismatched expressions.
  
  Solution:
  
  Check Data Types: Review the data types of both expressions involved in the error. Ensure that they are compatible. You can do this by checking the definitions of the variables or parameters in the workflow.
  Adjust Bindings: If the expressions are supposed to be compatible but are not, you may need to adjust the bindings in the workflow. This could involve changing the data type of one of the expressions or modifying the workflow logic to ensure compatibility.
  Use Conversion Functions: If necessary, use conversion functions to convert one expression to the type of the other. For example, if one expression is a string and the other is an integer, you might convert the integer to a string before binding.
  Review Workflow Logic: Ensure that the logic of the workflow is correct and that the expressions are being used in the right context. Sometimes, restructuring the workflow can resolve the issue.
  
  Related Information:
  
  Workflow Binding: In SAP workflows, binding is the process of linking workflow variables to the data that is passed between workflow steps. Understanding how binding works is crucial for troubleshooting these types of errors.
  SAP Documentation: Refer to the official SAP documentation for more details on workflow binding and data types. This can provide insights into how to properly configure your workflow.
  Debugging Tools: Use SAP debugging tools to step through the workflow and identify where the incompatibility arises. This can help pinpoint the exact location and cause of the error.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting the SAP community for further assistance.