How To Fix MC729 - Key field &-& missing. Specify maintenance status 'read only'.

MC729 - Overview

• Message type: E = Error

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

• Message number: 729

• Message text: Key field &-& missing. Specify maintenance status 'read only'.

What causes this issue?

A key field of the base table was not included in a view which is not
marked as 'read only'. Views with which data is to be changed or
inserted must contain all the key fields of the base table.

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?

Include the missing key fields in the view or set the maintenance
status to R (read only).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC729 - Key field &-& missing. Specify maintenance status 'read only'. ?

  The SAP error message MC729, which states "Key field &-& missing. Specify maintenance status 'read only'," typically occurs in the context of Material Management (MM) or Production Planning (PP) modules when there is an issue with the data being processed in a transaction or report. This error indicates that a required key field is missing from the data being accessed or modified.
  
  Cause:
  
  Missing Key Fields: The error usually arises when a key field that is necessary for the operation (like a material number, plant, or storage location) is not provided or is empty.
  Read-Only Status: The system is in a read-only mode for the data being accessed, which means that changes cannot be made, and the required key fields must be present to proceed.
  Data Inconsistency: There may be inconsistencies in the data, such as missing entries in the database or issues with the configuration of the material master or related tables.
  
  
  Solution:
  
  Check Key