How To Fix M2734 - Warnings were found when the communication structure was checked (Log)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 734

• Message text: Warnings were found when the communication structure was checked (Log)

What causes this issue?

Notes appeared when the communication structure was checked.

How to fix this error?

Check if you have received a warning message or an error message and
carry out the respective activity described below:

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

<ZH>Warning message</>
The communication structure does satisfy the requirements of the LIS
inbound interface, but certain functions need to be deactivated.
Use the notes in the log to check if you need these functions.
<ZH>Error message</>
The communication structure is incomplete.
Rectify the errors that are listed in the log.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2734 - Warnings were found when the communication structure was checked (Log) ?

  The SAP error message M2734 indicates that there are warnings related to the communication structure during a check. This typically occurs in the context of Material Management (MM) or related modules where communication structures are used for data transfer between different components or systems.
  Cause:
  The warnings can arise from several issues, including but not limited to:
  
  Inconsistent Data: There may be inconsistencies in the data definitions or structures that are being used.
  Missing Fields: Required fields in the communication structure may be missing or incorrectly defined.
  Data Type Mismatches: There could be mismatches in data types between the source and target structures.
  Version Mismatches: The communication structure may not be compatible with the version of the system or the data being processed.
  Configuration Issues: Incorrect configuration settings in the related modules can lead to warnings.
  
  Solution:
  To resolve the M2734 error, you can follow these steps:
  
  
  Check the Log: Review the detailed log associated with the error message to identify the specific warnings. This log will provide insights into what exactly is causing the issue.
  
  
  Analyze the Communication Structure:
  
  Go to the relevant transaction (e.g., SE11 for Data Dictionary) and check the communication structure in question.
  Ensure that all required fields are present and correctly defined.
  
  
  
  Data Consistency:
  
  Verify that the data types and lengths of the fields in the communication structure match those in the source and target systems.
  Check for any inconsistencies in the data that might be causing the warnings.
  
  
  
  Configuration Review:
  
  Review the configuration settings in the relevant modules (e.g., MM, SD) to ensure they are set up correctly.
  Make sure that any necessary customizing settings are in place.
  
  
  
  Testing:
  
  After making the necessary adjustments, perform tests to ensure that the communication structure works as expected without generating warnings.
  
  
  
  Consult Documentation: If the issue persists, refer to SAP documentation or support notes related to the specific communication structure or module you are working with.
  
  
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE37 (Function Modules), and others that may help in analyzing the issue.
  SAP Notes: Search for SAP Notes related to M2734 or the specific communication structure you are dealing with, as they may provide additional insights or solutions.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the warnings associated with the communication structure in SAP.