How To Fix M2781 - Communication structure & already exists in INCLUDE &!

M2781 - Overview

• Message type: E = Error

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

• Message number: 781

• Message text: Communication structure & already exists in INCLUDE &!

What causes this issue?

You are creating an LIS inbound interface for a new communication
structure.
This communication structure has to be configured to the DATA INCLUDE
for formulas and requirements.
The communication structure, however, already existis in the DATA
INCLUDE.

System Response

Your LIS inbound interface was nevertheless generated.

How to fix this error?

Your system is inconsistent.
Make the necessary checks. It is absolutely <ZH>essential</> that you
correct existing formulas, requirements, information structures and
updating for the communication structure &V2&.
Formulas and requirements that should actually have been deleted can
cause updating to be terminated.

Error message extract from SAP system. Copyright SAP SE.

M2781 - Details

• The SAP error message M2781 typically indicates that there is a problem with the communication structure in the context of Material Management (MM) or related modules. This error usually arises when there is an attempt to create or modify a communication structure that already exists in the system, leading to a conflict.
  
  Cause:
  
  Duplicate Communication Structure: The error occurs when the system detects that the communication structure you are trying to create or modify already exists in the specified INCLUDE.
  Incorrect Configuration: There may be an issue with the configuration settings or the way the communication structures are defined in the system.
  Development or Customization Issues: If you are working in a development environment, it could be due to a custom development that is conflicting with standard SAP structures.
  
  
  Solution:
  
  Check Existing Structures: Verify if the communication structure you are trying to create already exists. You can do this by checking the relevant transaction codes (like