How To Fix TPDA160 - Table &1 contains columns that cannot be changed

TPDA160 - Overview

• Message type: E = Error

• Message class: TPDA - Debugger

• Message number: 160

• Message text: Table &1 contains columns that cannot be changed

What causes this issue?

Only table columns of a single type (C,I,...) or strings can be changed
in the table directly.

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?

For columns containing objects, data references, structures or tables,
double-click to navigate to the respective detailed view, where you can
then make the changes.

Error message extract from SAP system. Copyright SAP SE.

TPDA160 - Details

• The SAP error message TPDA160 indicates that there are columns in a specified table that cannot be changed. This typically occurs when you attempt to modify a database table structure in a way that is not allowed due to various constraints or properties of the table.
  Causes:
  
  Table Type: The table may be a pooled or cluster table, which has restrictions on certain types of changes.
  Data Dictionary Restrictions: Certain columns may be defined as key fields or have specific data types that prevent modification.
  Foreign Key Relationships: If the table is involved in foreign key relationships, changes to certain columns may be restricted to maintain referential integrity.
  Table Locking: The table might be locked by another process, preventing changes.
  Transport Requests: If you are trying to transport changes, the table may be part of a transport request that is not in a state that allows modifications.
  
  Solutions:
  
  Check Table Type: Verify if the table is a pooled