How To Fix MC548 - Key fields proposed

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 548

• Message text: Key fields proposed

What causes this issue?

The system automatically proposes the key fields of the primary tables
as view fields.

System Response

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

How to fix this error?

If you do not want this, you can change or delete the proposed fields
by overwriting them.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC548 - Key fields proposed ?

  The SAP error message MC548 ("Key fields proposed") typically occurs in the context of Material Management (MM) or Production Planning (PP) when there is an issue with the key fields in a transaction or report. This error indicates that the system is unable to determine the necessary key fields for processing the request, which can happen for various reasons.
  Causes:
  
  Missing Key Fields: The required key fields for the transaction or report are not filled in or are incomplete.
  Incorrect Configuration: The configuration settings for the relevant module (like MM or PP) may not be set up correctly, leading to the system not being able to identify the necessary key fields.
  Data Inconsistencies: There may be inconsistencies or missing data in the master data (like material master, vendor master, etc.) that are required for the transaction.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain key fields or data.
  
  Solutions:
  
  Check Input Fields: Ensure that all required key fields are filled in correctly. Review the transaction or report to see if any mandatory fields are missing.
  Review Configuration: If you have access, check the configuration settings in the relevant module (MM or PP) to ensure that all necessary key fields are defined correctly.
  Data Validation: Validate the master data related to the transaction. Ensure that all relevant data (like material, vendor, etc.) is complete and accurate.
  User Authorizations: Verify that the user has the necessary authorizations to access the required data. If not, contact your SAP security team to adjust the authorizations.
  Consult Documentation: Refer to SAP documentation or help files for the specific transaction or report to understand the required key fields and their significance.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to inventory management, material planning, or reporting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Community Forums: SAP Community and other forums can be helpful to see if other users have encountered the same issue and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth analysis and assistance.