How To Fix E1127 - No link exists between logical message and IDoc type (EDIMSG)

SAP Error Message - Details

• Message type: E = Error

• Message class: E1 - Messages for IDoc Basis

• Message number: 127

• Message text: No link exists between logical message and IDoc type (EDIMSG)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message E1127 - No link exists between logical message and IDoc type (EDIMSG) ?

  The SAP error message E1127, which states "No link exists between logical message and IDoc type (EDIMSG)," typically occurs in the context of IDoc processing and integration scenarios. This error indicates that there is a missing or incorrect configuration linking the logical message type to the corresponding IDoc type.
  Cause:
  
  Missing Configuration: The logical message type has not been correctly linked to an IDoc type in the SAP system.
  Incorrect Mapping: The mapping between the logical message and the IDoc type may be incorrect or not set up at all.
  Transport Issues: If the configuration was recently transported from one system to another (e.g., from development to production), the necessary settings may not have been included in the transport.
  Custom Development: If there are custom IDocs or logical messages, they may not have been properly defined or registered.
  
  Solution:
  To resolve the E1127 error, follow these steps:
  
  
  Check Logical Message Configuration:
  
  Go to transaction WE81 (Logical Message Types) and verify that the logical message type you are using is correctly defined.
  Ensure that the logical message type is linked to the appropriate IDoc type in transaction WE82 (IDoc Types for Logical Message Types).
  
  
  
  Link Logical Message to IDoc:
  
  In transaction WE82, check if the IDoc type is associated with the logical message type. If not, you can create a new entry to link them.
  Ensure that the IDoc type you are trying to use is correctly defined and active.
  
  
  
  Check for Custom Developments:
  
  If you are using custom IDocs or logical messages, ensure that they are properly defined in the system and that all necessary configurations are in place.
  
  
  
  Transport Issues:
  
  If the configuration was recently transported, check the transport logs to ensure that all necessary objects were included in the transport request.
  If needed, re-transport the missing configurations.
  
  
  
  Testing:
  
  After making the necessary changes, test the IDoc processing again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  IDoc Types: IDocs are used for data interchange between SAP systems and external systems. Each IDoc type corresponds to a specific data structure.
  Logical Message Types: Logical message types are used in the context of ALE (Application Link Enabling) and are a way to define the type of data being sent.
  Transaction Codes:
  
  WE81: To manage logical message types.
  WE82: To manage the mapping between logical messages and IDoc types.
  WE30: To create or modify IDoc types.
  
  
  
  By following these steps and checking the configurations, you should be able to resolve the E1127 error in your SAP system.