How To Fix MH328 - No new database key could be assigned for & & & and table &

SAP Error Message - Details

• Message type: E = Error

• Message class: MH - Maintain Material Master Data (Retail)

• Message number: 328

• Message text: No new database key could be assigned for & & & and table &

What causes this issue?

The system has tried to insert a new record in table MALG (layout
modules) and to assign the key field LMNUM. However, there are no more
free values in the interval allowed. As a result, no further keys can
be created.
This situation occurs only very rarely because the range defined for
field LMNUM is normally sufficient for all conceivable cases. However,
it depends on:
Number of layout modules to which a material in a given unit of measure
is assigned
How often this data has been changed

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?

Contact SAP to arrange for your database data to be restructured.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MH328 - No new database key could be assigned for & & & and table & ?

  The SAP error message MH328 indicates that the system is unable to assign a new database key for a specific table. This typically occurs during operations that involve database key generation, such as when creating or modifying entries in a database table.
  Cause:
  
  Key Generation Issues: The error often arises when the system cannot generate a new key for the specified table. This can happen if the key range is exhausted or if there are issues with the underlying database configuration.
  Database Constraints: There may be constraints or locks on the database that prevent the assignment of new keys.
  Configuration Errors: Incorrect configuration settings in the SAP system or the database can lead to this error.
  Data Consistency Issues: If there are inconsistencies in the data or if the table is not properly defined, it can lead to key assignment failures.
  
  Solution:
  
  Check Key Ranges: Verify the key ranges for the table in question. Ensure that there are available keys for assignment. If the key range is exhausted, you may need to extend it.
  Database Locks: Check for any locks on the database that might be preventing key assignment. You can use transaction codes like SM12 to view and manage locks.
  Table Configuration: Review the configuration of the table in the Data Dictionary (SE11). Ensure that it is correctly defined and that there are no inconsistencies.
  Database Maintenance: Perform database maintenance tasks, such as reorganization or cleanup, to ensure that the database is in a healthy state.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this can resolve known issues.
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error message. There may be specific fixes or recommendations provided by SAP.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), and SM12 (Lock Entries) for troubleshooting.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurs.
  Documentation: Review SAP documentation related to database management and key assignment for further insights.
  
  By following these steps, you should be able to diagnose and resolve the MH328 error in your SAP system.