How To Fix MQ373 - Error reading field &1 in key table &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MQ - Messages for Euro Changeover Package

• Message number: 373

• Message text: Error reading field &1 in key table &2

What causes this issue?

In order to convert a summarization level, the system tried to read
field &v1& in key table &v2&. This field could not be found.

System Response

The summarization level cannot be converted.

How to fix this error?

Contact SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MQ373 - Error reading field &1 in key table &2 ?

  The SAP error message MQ373, which states "Error reading field &1 in key table &2," typically occurs when there is an issue with accessing a specific field in a key table during a database operation. This error can arise due to various reasons, including data inconsistencies, missing entries, or issues with the database itself.
  Causes:
  
  Data Inconsistency: The data in the key table may be inconsistent or corrupted, leading to the inability to read the specified field.
  Missing Entries: The key table may not contain the expected entries, which can happen if data was not properly migrated or if there are issues with data integrity.
  Authorization Issues: The user may not have the necessary authorizations to access the key table or the specific field.
  Database Issues: There could be underlying database issues, such as locks, corruption, or connectivity problems.
  Configuration Errors: Incorrect configuration settings in the SAP system or the database can lead to this error.
  
  Solutions:
  
  Check Data Integrity: Verify the integrity of the data in the key table. You can use transaction codes like SE11 (Data Dictionary) to check the structure and contents of the table.
  Review Authorizations: Ensure that the user has the necessary authorizations to access the key table and the specific field. You can check this using transaction SU53 or SU01.
  Database Consistency Check: Perform a consistency check on the database. This can be done using transaction DB02 or by consulting your database administrator.
  Rebuild Indexes: If the error is related to database performance, consider rebuilding the indexes on the key table.
  Check for Locks: Use transaction SM12 to check for any locks on the key table that might be preventing access.
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches or updates.
  Debugging: If you have access to debugging tools, you can analyze the program or transaction that triggered the error to identify the root cause.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), SM12 (Lock Entries), DB02 (Database Performance), SU53 (Authorization Check).
  SAP Notes: Always check the SAP Support Portal for any specific notes related to the error message MQ373, as they may provide additional context or solutions.
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.