How To Fix CNVMBT158 - No Meta Interface Variant assigned to object &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 158

• Message text: No Meta Interface Variant assigned to object &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBT158 - No Meta Interface Variant assigned to object &1 ?

  The SAP error message CNVMBT158 indicates that there is no Meta Interface Variant assigned to the specified object. This error typically occurs in the context of data migration or conversion processes, particularly when using the SAP Migration Cockpit or similar tools.
  Cause:
  The error arises when the system attempts to execute a migration or conversion process, but it cannot find a valid Meta Interface Variant for the specified object. This can happen due to several reasons:
  
  Missing Configuration: The Meta Interface Variant has not been defined or configured for the object in question.
  Incorrect Object Reference: The object reference provided may be incorrect or not properly set up in the system.
  Transport Issues: If the configuration was transported from another system, it may not have been transported correctly, leading to missing variants.
  Authorization Issues: The user may not have the necessary authorizations to access the Meta Interface Variants.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Configuration:
  
  Go to the relevant transaction (e.g., LTMC for Migration Cockpit) and verify if the Meta Interface Variant is correctly defined for the object.
  Ensure that the variant is active and properly assigned.
  
  
  
  Assign Meta Interface Variant:
  
  If the variant is missing, you may need to create a new Meta Interface Variant for the object. This can typically be done in the customizing settings of the relevant application area.
  
  
  
  Verify Object Reference:
  
  Double-check the object reference you are using. Ensure that it matches the expected format and that the object exists in the system.
  
  
  
  Transport Check:
  
  If the configuration was transported, check the transport logs to ensure that all necessary objects were included in the transport request.
  
  
  
  Authorization Check:
  
  Ensure that the user executing the migration has the necessary authorizations to access the Meta Interface Variants.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration or conversion process you are working on for additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTMC (for Migration Cockpit) or LTMOM (for Migration Object Modeler) to manage migration objects and variants.
  SAP Notes: Check SAP Notes for any known issues or updates related to the error message CNVMBT158.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement the necessary solution to resolve it.