How To Fix AD386 - Table type change; check whether data updates are required

AD386 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 386

• Message text: Table type change; check whether data updates are required

What causes this issue?

The table type has changed from CLUSTER to POOL. For performance
reasons no check was made to see whether the cluster table contained
data.

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?

Find out whether the table contains data. If there is no data in the
table, you can execute the 'Force activation' function. If data does
exist, use the DB utility in the ABAP/4 Dictionary to activate and
convert the table.

Error message extract from SAP system. Copyright SAP SE.

AD386 - Details

• The SAP error message AD386, which states "Table type change; check whether data updates are required," typically occurs when there is a change in the structure of a database table, particularly when the type of the table is altered. This can happen during a transport of changes, an upgrade, or when modifications are made to the data dictionary.
  
  Cause:
  
  Table Structure Change: The error is triggered when a table's structure is modified, such as changing a field's data type, adding or removing fields, or changing the table's key.
  Data Inconsistency: If the change affects how data is stored or accessed, it may lead to inconsistencies or require data updates to align with the new structure.
  Transport Issues: If the changes were transported from one system to another (e.g., from development to production), the transport may not have included necessary data updates.
  
  
  Solution:
  
  Check Table Changes: Review the changes made to the table structure in the Data