How To Fix M2436 - Only source fields from MC communications structures allowed

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 436

• Message text: Only source fields from MC communications structures allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message M2436 - Only source fields from MC communications structures allowed ?

  The SAP error message M2436, "Only source fields from MC communications structures allowed," typically occurs in the context of Material Management (MM) or Logistics when there is an issue with the data being processed in the system, particularly when dealing with communication structures related to material master data or inventory management.
  Cause:
  This error usually arises due to one of the following reasons:
  
  
  Incorrect Field Mapping: The fields being used in a transaction or report do not match the expected fields defined in the communication structure. This can happen if custom fields or incorrect field types are being referenced.
  
  
  Data Transfer Issues: If you are trying to transfer data between different systems (e.g., during an interface or data migration), the fields being used may not be compatible with the expected source fields in the communication structure.
  
  
  Configuration Errors: There may be configuration issues in the system that lead to the use of non-standard fields or structures that are not recognized by the system.
  
  
  Solution:
  To resolve the M2436 error, you can take the following steps:
  
  
  Check Field Mapping: Review the field mapping in the transaction or report that is generating the error. Ensure that only the fields defined in the MC communication structures are being used.
  
  
  Review Customizations: If there are any custom fields or enhancements, check if they are correctly implemented and compatible with the standard communication structures.
  
  
  Consult Documentation: Refer to SAP documentation or the data dictionary (SE11) to understand the expected fields in the communication structure and ensure that your implementation adheres to these specifications.
  
  
  Debugging: If you have access to debugging tools, you can trace the execution of the program to identify where the incorrect field is being referenced.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error message.
  
  
  Engage with SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves complex configurations or custom developments.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE37 (Function Module), and SE80 (Object Navigator) to investigate the structures and fields involved.
  Communication Structures: Understand the specific communication structures used in your SAP environment, such as those related to Material Master (e.g., MARA, MBEW).
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to identify the root cause of the M2436 error and implement an appropriate solution.