How To Fix MN846 - No field check possible for field &

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 846

• Message text: No field check possible for field &

What causes this issue?

Field &V1& has been newly added to the field checking structure
'MCKONAC' for data transfers from non-SAP-systems. A check is not
possible for field &V1& because function module '&V2&', which is
necessary for this purpose, has not yet been created.

System Response

The system will not allow a field check for field &V1&.

How to fix this error?

If a special check is to be carried out with regard to field &V1&, you
must first create an appropriate function module under the name '&V2&'.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MN846 - No field check possible for field & ?

  The SAP error message MN846 "No field check possible for field &" typically occurs in the context of material master data or inventory management when the system is unable to perform a field check for a specific field in a transaction. This can happen for various reasons, including configuration issues, missing data, or incorrect field settings.
  Causes:
  
  Field Configuration: The field in question may not be properly configured in the system. This could be due to missing settings in the field status group or the data element associated with the field.
  Data Inconsistency: There may be inconsistencies or missing data in the material master or related tables that prevent the system from validating the field.
  Authorization Issues: The user may not have the necessary authorizations to access or modify the field, leading to the error.
  Custom Development: If there are custom enhancements or modifications in the system, they may interfere with standard field checks.
  
  Solutions:
  
  
  Check Field Configuration:
  
  Go to the configuration settings for the relevant module (e.g., Material Management) and verify the field status group settings.
  Ensure that the field is marked as "required" or "optional" as needed.
  
  
  
  Review Material Master Data:
  
  Check the material master data for the specific material causing the error. Ensure that all required fields are filled out correctly.
  Use transaction MM03 to display the material and verify the data.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access and modify the field. This can be checked in transaction SU53 after the error occurs.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the transaction to identify where the error is being triggered. This may require assistance from a developer or SAP Basis team.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be patches or updates available that resolve the issue.
  
  
  
  Contact SAP Support:
  
  If the problem cannot be resolved internally, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) for managing material master data.
  Field Status Groups: Understand how field status groups work in SAP and how they can be configured for different transactions.
  User Authorizations: Review user roles and authorizations in transaction PFCG to ensure users have the necessary permissions.
  
  By following these steps, you should be able to identify the cause of the MN846 error and implement a solution.