How To Fix MDQ_MDC_MSG020 - Key structure &1 required for table generation does not exist

MDQ_MDC_MSG020 - Overview

• Message type: E = Error

• Message class: MDQ_MDC_MSG - Messages for Evaluation Process

• Message number: 020

• Message text: Key structure &1 required for table generation does not exist

What causes this issue?

The key structure &V1& that is required for the generation of Rule
Evaluation table &V2& does not exist in the Data Dictionary.

System Response

The system aborts the table generation process.

How to fix this error?

The key structure &V1& needs to be added to the Data Dictionary. You can
either create the structure manually using transaction <LB>SE11</>, or
you can generate the structure automatically by selecting the row that
contains the entry &V1& in the <ZH>Model Maintenance</> table and
selecting <ZH>Apply Selected</>.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDQ_MDC_MSG020 - Key structure &1 required for table generation does not exist ?

  The SAP error message MDQ_MDC_MSG020 indicates that a key structure required for the generation of a table does not exist. This error typically occurs in the context of Master Data Governance (MDG) or when working with Multi-Dimensional Data (MDC) in SAP systems.
  
  Cause:
  The error can be caused by several factors:
  
  Missing Key Structure: The key structure that is referenced in the configuration or data model does not exist in the system.
  Incorrect Configuration: There may be a misconfiguration in the data model or the settings related to the key structure.
  Transport Issues: If the key structure was recently transported from another system, it may not have been transported correctly or completely.
  Development Environment: If you are working in a development environment, the key structure may not have been created or activated.
  
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Key Structure:
  
  Go to the relevant transaction (e.g., SE11 for Data Dictionary) and check if the key