How To Fix E0755 - Name of segment type must begin with &

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 755

• Message text: Name of segment type must begin with &

What causes this issue?

The name of the segment type begins with an invalid prefix.

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?

Segment types delivered by SAP begin with the prefix &v1&.
Segment types created by the customer begin with the prefix &v2&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0755 - Name of segment type must begin with & ?

  The SAP error message E0755, which states "Name of segment type must begin with &," typically occurs in the context of the SAP IDoc (Intermediate Document) processing or when working with the ALE (Application Link Enabling) configuration. This error indicates that the segment type name you are trying to use does not conform to the naming conventions required by SAP.
  Cause:
  
  Invalid Segment Name: The segment type name you are trying to define or use does not start with the required character &. In SAP, segment types must follow specific naming conventions, and the & character is often used as a prefix to denote certain types of segments.
  Configuration Error: There may be a misconfiguration in the IDoc or ALE settings where the segment type is defined incorrectly.
  Typographical Error: There could be a simple typographical error in the segment name where the & character is missing.
  
  Solution:
  
  Check Segment Name: Ensure that the segment type name you are using starts with the & character. For example, if you are defining a segment type, it should look something like &MY_SEGMENT.
  Review IDoc Configuration: Go to the IDoc segment definition in transaction WE31 or WE30 and verify that the segment type is correctly defined with the appropriate naming convention.
  Correct Typographical Errors: If you find any typographical errors in the segment name, correct them to ensure compliance with SAP's naming conventions.
  Consult Documentation: If you are unsure about the naming conventions or how to define segment types, refer to the SAP documentation or help resources for guidance on IDoc and ALE configurations.
  
  Related Information:
  
  Transaction Codes: 
  
  WE30: IDoc Type Development
  WE31: Segment Type Development
  WE20: Partner Profiles
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to IDoc processing or segment naming conventions.
  SAP Community: Engage with the SAP Community forums for additional insights or similar issues faced by other users.
  
  By following these steps, you should be able to resolve the E0755 error and ensure that your segment types are correctly defined in SAP.