How To Fix BC_DATAMODEL_SERVICE661 - &1 is not a valid message type

SAP Error Message - Details

• Message type: E = Error

• Message class: BC_DATAMODEL_SERVICE - BC Training (All Courses)

• Message number: 661

• Message text: &1 is not a valid message type

Self-Explanatory Message

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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 BC_DATAMODEL_SERVICE661 - &1 is not a valid message type ?

  The SAP error message BC_DATAMODEL_SERVICE661 indicates that there is an issue with the message type being used in a data model service. Specifically, the error message states that the message type specified (represented by &1) is not valid. This can occur in various contexts, such as when working with SAP Gateway, OData services, or other data model-related functionalities.
  Causes:
  
  Invalid Message Type: The message type specified in the request or configuration does not exist or is not recognized by the system.
  Configuration Issues: There may be a misconfiguration in the service definition or the data model that leads to the system not recognizing the message type.
  Transport Issues: If the message type was recently transported from another system, it may not have been properly activated or may be missing in the target system.
  Version Mismatch: The message type may be valid in one version of the application but not in another, leading to compatibility issues.
  
  Solutions:
  
  Check Message Type: Verify that the message type specified in the request is correct and exists in the system. You can do this by checking the relevant configuration or documentation.
  Review Configuration: Go through the configuration settings for the data model or service to ensure that all parameters are set correctly and that the message type is properly defined.
  Activate Services: If the message type was recently transported, ensure that all necessary services and configurations are activated in the target system.
  Consult Documentation: Refer to SAP documentation or notes related to the specific data model or service you are working with to ensure that you are using the correct message types.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the error is being triggered and gather more context about the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message. You can search for the error message number in the SAP Support Portal.
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to explore the relevant objects and configurations.
  OData Services: If you are working with OData services, ensure that the service is properly registered and that the message types are defined in the service metadata.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.