How To Fix E0757 - Segment type(s) cannot be deleted - & occurs in predecessor IDoc type &

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 757

• Message text: Segment type(s) cannot be deleted - & occurs in predecessor IDoc type &

What causes this issue?

The segment type(s) cannot be deleted. The segment type &v1& occurs in
predecessor IDoc type &v2&. The development object you are currently
editing is a successor IDoc type of &v2&. Successors must be compatible
with predecessors.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Create the development object to be edited as a copy of &v2& and not as
a successor. A copy allows you more options for editing the development
object.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0757 - Segment type(s) cannot be deleted - & occurs in predecessor IDoc type & ?

  The SAP error message E0757, which states "Segment type(s) cannot be deleted - & occurs in predecessor IDoc type &," typically arises when you attempt to delete a segment type from an IDoc type that is still being referenced by another IDoc type. This is a common issue when managing IDoc structures in SAP.
  Cause:
  
  Dependency: The segment type you are trying to delete is still being used in another IDoc type (predecessor). In SAP, IDoc types can have hierarchical relationships, and segments can be reused across different IDoc types.
  Data Integrity: SAP enforces data integrity rules to ensure that all references to segments are maintained, preventing accidental loss of data structure.
  
  Solution:
  
  
  Check Dependencies: Before attempting to delete a segment type, check if it is being used in any other IDoc types. You can do this by:
  
  Using transaction code WE30 (IDoc Type Development) to view the IDoc types and their segments.
  Checking the segment type in question to see if it is referenced in any other IDoc types.
  
  
  
  Remove References: If the segment type is indeed referenced in another IDoc type, you will need to:
  
  Modify the IDoc type(s) that reference the segment type to remove the dependency.
  Once all references are removed, you can then proceed to delete the segment type.
  
  
  
  Use Transaction WE31: If you are managing segment types directly, you can use transaction WE31 to view and manage segment definitions. Ensure that the segment is not being used before attempting deletion.
  
  
  Consult Documentation: If you are unsure about the implications of deleting a segment type, consult SAP documentation or your organization's SAP guidelines to understand the impact on existing IDocs and processes.
  
  
  Related Information:
  
  IDoc Structure: IDocs are structured in a hierarchical manner, consisting of segments that can contain data fields. Understanding this structure is crucial for managing IDocs effectively.
  Testing: After making changes to IDoc types or segments, it is advisable to test the IDoc processing to ensure that everything functions as expected.
  Transport Requests: If you are working in a development environment, remember to include your changes in a transport request to move them to the production environment.
  
  By following these steps, you should be able to resolve the E0757 error and manage your IDoc segments effectively.