How To Fix /AIF/MES201 - Interface variant key field should not be blank

/AIF/MES201 - Overview

• Message type: E = Error

• Message class: /AIF/MES -

• Message number: 201

• Message text: Interface variant key field should not be blank

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /AIF/MES201 - Interface variant key field should not be blank ?

  The SAP error message /AIF/MES201 Interface variant key field should not be blank typically occurs in the context of the Application Interface Framework (AIF) when processing messages or data interfaces. This error indicates that a required key field in the interface variant is missing or has not been populated.
  
  Cause:
  
  Missing Key Field: The key field that is required for the interface variant is not filled in the data being processed.
  Incorrect Configuration: The interface variant may not be correctly configured, leading to the expectation of a key field that is not being provided.
  Data Mapping Issues: There may be issues in the data mapping where the key field is not being correctly mapped from the source to the target.
  User Input Error: If the data is being entered manually, the user may have forgotten to fill in the required key field.
  
  
  Solution:
  
  Check Input Data: Ensure that all required fields, especially the key fields, are populated