How To Fix M2764 - More than one inbound interface was found for structure & !

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 764

• Message text: More than one inbound interface was found for structure & !

What causes this issue?

There are several inbound interfaces for the communication structure
&V1&.

System Response

The IDoc data was not posted.

How to fix this error?

Check to see which inbound interface is being used by this
communication structure and delete the remaining structures.
The where-used list in the LIS inbound interface helps you to find this
out (under <LS>Utilities</>).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2764 - More than one inbound interface was found for structure & ! ?

  The SAP error message M2764 ("More than one inbound interface was found for structure &!") typically occurs in the context of data transfer or interface processing, particularly when working with IDocs or other data structures in SAP. This error indicates that the system has identified multiple inbound interfaces that correspond to the same data structure, which can lead to ambiguity in processing.
  Cause:
  
  
  Multiple Interfaces Defined: The primary cause of this error is that there are multiple inbound interfaces defined for the same structure in the system. This can happen if:
  
  Different IDoc types or message types are configured to use the same data structure.
  There are custom developments or enhancements that have created additional interfaces for the same structure.
  
  
  
  Configuration Issues: Sometimes, the configuration in the SAP system may not be set up correctly, leading to multiple entries for the same structure in the relevant tables.
  
  
  Solution:
  To resolve the M2764 error, you can take the following steps:
  
  
  Identify the Structure: Determine which structure is causing the issue. The error message will typically include the name of the structure (represented by &).
  
  
  Check Inbound Interfaces:
  
  Use transaction codes like WE30 (IDoc Types) or WE20 (Partner Profiles) to check the inbound interfaces associated with the structure.
  Look for multiple entries that reference the same structure.
  
  
  
  Remove Duplicates: If you find multiple inbound interfaces for the same structure:
  
  Decide which interface is the correct one to use.
  Remove or deactivate the unnecessary interfaces to eliminate the ambiguity.
  
  
  
  Adjust Configuration: If the issue is due to configuration, ensure that the inbound processing is set up correctly. This may involve:
  
  Modifying the partner profiles.
  Adjusting the IDoc type settings.
  
  
  
  Testing: After making changes, test the data transfer or interface processing again to ensure that the error is resolved.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  WE30 - IDoc Types
  WE20 - Partner Profiles
  WE19 - Test Tool for IDocs
  
  
  Documentation: Review SAP documentation or help resources related to IDoc processing and inbound interfaces for more detailed guidance.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.