How To Fix DT021 - Table is used in too many programs

DT021 - Overview

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 021

• Message text: Table is used in too many programs

What causes this issue?

The table is used in too many programs. Activation is therefore
rejected for performance reasons.

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?

Error message extract from SAP system. Copyright SAP SE.

DT021 - Details

• The SAP error message DT021, which states "Table is used in too many programs," typically occurs when a database table is referenced in a large number of programs or objects within the SAP system. This can lead to performance issues or complications during transport or modification of the table.
  
  Cause:
  
  High Usage: The table is referenced in a significant number of programs, function modules, or other objects, which can complicate changes or enhancements.
  System Limitations: SAP has internal limits on how many objects can reference a single table. When this limit is exceeded, the error is triggered.
  Development Practices: Poor design or excessive coupling between objects can lead to a situation where a single table is overused.
  
  
  Solution:
  
  Analyze Usage: Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to analyze where the table is being used. Identify the programs, function modules, or other objects that reference the table.
  Refactor Code: If possible, refactor the