How To Fix E1126 - Link exists between logical message and IDoc type

SAP Error Message - Details

• Message type: E = Error

• Message class: E1 - Messages for IDoc Basis

• Message number: 126

• Message text: Link exists between logical message and IDoc type

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message E1126 - Link exists between logical message and IDoc type ?

  The SAP error message E1126, which states "Link exists between logical message and IDoc type," typically occurs in the context of IDoc processing and configuration in SAP systems. This error indicates that there is a linkage or association between a logical message and an IDoc type that is causing a conflict or issue.
  Cause:
  
  Configuration Issues: The error often arises due to incorrect or incomplete configuration in the IDoc interface. This could be related to the mapping of logical messages to IDoc types.
  Duplicate Entries: There may be duplicate entries in the configuration tables that link logical messages to IDoc types.
  Inconsistent Data: If there are inconsistencies in the data or configuration settings, it can lead to this error.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), and the transport did not include all necessary objects, this error may occur.
  
  Solution:
  
  
  Check Configuration: 
  
  Go to transaction WE81 (Logical Message Types) and WE82 (IDoc Types) to verify the configuration. Ensure that the logical message is correctly linked to the appropriate IDoc type.
  Review the settings in transaction WE30 (IDoc Type) and WE31 (IDoc Segments) to ensure that the IDoc type is correctly defined.
  
  
  
  Remove Duplicate Entries: 
  
  Check for any duplicate entries in the configuration tables. If duplicates are found, remove or correct them.
  
  
  
  Consistency Check: 
  
  Use transaction WE60 to generate documentation for the IDoc type and check for any inconsistencies.
  Ensure that all necessary objects are present and correctly configured.
  
  
  
  Transport Management: 
  
  If the issue arose after a transport, check the transport logs to ensure that all necessary objects were included in the transport request.
  If needed, re-transport the missing objects.
  
  
  
  Testing: 
  
  After making the necessary changes, test the IDoc processing again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  IDoc Basics: IDocs (Intermediate Documents) are used in SAP for data interchange between systems. Understanding the structure and configuration of IDocs is crucial for troubleshooting.
  Logical Message Types: Logical messages are used to define the type of data being sent or received. Each logical message can be linked to one or more IDoc types.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error. SAP frequently releases notes that address known issues and provide solutions.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP Basis or technical consultant who can provide deeper insights into the system configuration and help resolve the issue.