How To Fix MM051 - Check whether a corresponding database index exists

MM051 - Overview

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 051

• Message text: Check whether a corresponding database index exists

What causes this issue?

You have activated the use of one or more reference materials. As a
result, the system has to frequently access the database via the
relevant field(s). Unless the corresponding index for the field is
activated, this will result in a significant loss of performance.

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?

Using the following table, check whether the index exists in the
database. To identify the indicator, call up the F1 help for the field
concerned and choose <LS>Technical info</>.
Indicator,,Field name,,,,Index
KZPMA,,MARA-PMATA,,,,PMA
KZPMV,,MVKE-PMATN,,,,PMV
KZNFM,,MARC-NFMAT,,,,NFM
KZVBM,,MARC-VRBWK/MARC-VRBMT,,,,VBM
KZPRG,,,,,,No index necessary
KZSAT,,MARA-SATNR,,,,O
KZSTD,,MARC-STDPD,,,,STD
KZMPN,,MARA-BMATN,,,,MPN and BMA

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MM051 - Check whether a corresponding database index exists ?

  The SAP error message MM051, which states "Check whether a corresponding database index exists," typically occurs in the Materials Management (MM) module when the system is unable to find a required database index for a specific operation. This can happen during various processes, such as inventory management, purchasing, or material master data handling.
  
  Cause:
  
  Missing Index: The most common cause is that the necessary database index for the table being accessed does not exist or has not been created.
  Database Changes: Changes in the database structure, such as updates or modifications to the underlying tables, can lead to missing indexes.
  Transport Issues: If the system has recently undergone a transport of changes, the index may not have been included or created properly.
  Database Corruption: In rare cases, database corruption can lead to missing or invalid indexes.
  
  
  Solution:
  
  Check Indexes: Use transaction code SE11 (Data Dictionary) to check the relevant database table and see if the required index