How To Fix R8157 - No segments defined

SAP Error Message - Details

• Message type: E = Error

• Message class: R8 - Messages from the meta data generation

• Message number: 157

• Message text: No segments defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message R8157 - No segments defined ?

  The SAP error message R8157, "No segments defined," typically occurs in the context of the SAP system when dealing with data segments, particularly in the context of IDocs (Intermediate Documents) or when working with certain data structures that require segment definitions.
  Cause:
  
  Missing Segment Definitions: The most common cause of this error is that the required segments for the IDoc or data structure have not been defined in the system. This can happen if the IDoc type or message type is not properly configured.
  Incorrect Configuration: If the configuration for the IDoc or the data structure is incomplete or incorrect, it may lead to this error.
  Transport Issues: If the segments were supposed to be transported from another system and the transport did not include the necessary segment definitions, this error can occur.
  Custom Development: If there are custom segments that have not been properly defined or activated in the system, this can also lead to the error.
  
  Solution:
  
  Check Segment Definitions: Go to transaction WE31 (for segment definitions) or WE30 (for IDoc types) and verify that the necessary segments are defined for the IDoc type you are working with.
  Define Missing Segments: If segments are missing, you will need to create them. This can be done in WE31 by defining the segment structure and ensuring it is activated.
  Review IDoc Configuration: Use transaction WE20 to check the partner profiles and ensure that the message types and IDoc types are correctly configured.
  Transport Requests: If the segments were supposed to be transported, check the transport requests to ensure that they included the necessary objects. If not, you may need to create a new transport request that includes the missing segments.
  Custom Development Review: If you are using custom segments, ensure that they are properly defined and activated in the system. You may need to consult with your ABAP developers if there are issues with custom code.
  
  Related Information:
  
  Transaction Codes:
  
  WE30: IDoc Type Development
  WE31: Segment Definition
  WE20: Partner Profiles
  
  
  Documentation: Refer to SAP Help documentation for IDocs and segment definitions for more detailed guidance on how to define and manage segments.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for R8157 in the SAP Support Portal.
  
  By following these steps, you should be able to identify the cause of the R8157 error and implement the necessary solutions to resolve it.