How To Fix /IWBEP/CM_CP143 - No modifying operation allowed outside a changeset in V2

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 143

• Message text: No modifying operation allowed outside a changeset in V2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_CP143 - No modifying operation allowed outside a changeset in V2 ?

  The SAP error message /IWBEP/CM_CP143 No modifying operation allowed outside a changeset in V2 typically occurs in the context of OData services when you are trying to perform a modifying operation (like an update, insert, or delete) outside of a defined changeset. This is particularly relevant in OData V2 services, where changesets are used to group multiple modifying operations into a single transaction.
  Cause:
  
  Changeset Requirement: In OData V2, modifying operations must be enclosed within a changeset. If you attempt to perform an operation without wrapping it in a changeset, the system will throw this error.
  Incorrect Request Structure: The request sent to the OData service may not be structured correctly to include a changeset.
  Client-Side Logic: The client application (e.g., SAP UI5, Fiori, or any other OData client) may not be correctly managing the changesets.
  
  Solution:
  
  
  Wrap Modifying Operations in a Changeset: Ensure that all modifying operations (like POST, PUT, DELETE) are included within a changeset. A changeset is defined in the OData request as follows:
  POST /service/$batch HTTP/1.1
  Content-Type: multipart/mixed; boundary=batch_boundary
  
  --batch_boundary
  Content-Type: application/http
  Content-Transfer-Encoding: binary
  
  POST /service/EntitySet1 HTTP/1.1
  Content-Type: application/json
  
  { "property": "value" }
  --batch_boundary
  Content-Type: application/http
  Content-Transfer-Encoding: binary
  
  POST /service/EntitySet2 HTTP/1.1
  Content-Type: application/json
  
  { "property": "value" }
  --batch_boundary--
  Make sure that the modifying operations are correctly formatted within the changeset.
  
  
  Check Client Implementation: If you are using a client library (like SAP UI5), ensure that it is correctly handling changesets. Review the documentation for the library to see how to properly implement batch requests with changesets.
  
  
  Debugging: If you are still encountering issues, use tools like Postman or Fiddler to inspect the raw HTTP requests being sent to the OData service. This can help you identify if the changeset is being formed correctly.
  
  
  Review OData Service Implementation: If you have access to the backend service implementation, ensure that it is correctly configured to handle changesets and that there are no restrictions or misconfigurations that could lead to this error.
  
  
  Related Information:
  
  OData Protocol: Understanding the OData protocol, especially the differences between OData V2 and V4, can help in troubleshooting issues related to modifying operations and changesets.
  SAP Documentation: Refer to the official SAP documentation for OData services and the specific service you are working with for more detailed guidance on handling changesets.
  Community Forums: SAP Community and other forums can be valuable resources for finding similar issues faced by other developers and their solutions.
  
  By ensuring that all modifying operations are correctly wrapped in a changeset and that your client-side logic is properly implemented, you should be able to resolve the /IWBEP/CM_CP143 error.