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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message TPDA160 - Table &1 contains columns that cannot be changed ?

  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 or cluster table. If it is, you may need to create a new transparent table instead.
  Review Data Dictionary: Check the data dictionary (SE11) for the table to see the properties of the columns you are trying to change. Ensure that you are not trying to modify key fields or fields with specific constraints.
  Foreign Key Constraints: If there are foreign key relationships, you may need to drop these constraints before making changes and then recreate them afterward.
  Unlock the Table: If the table is locked, identify the process that is holding the lock and resolve it.
  Use Correct Transport Request: Ensure that you are using the correct transport request and that it is in a state that allows modifications.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), and SE03 (Transport Organizer) to manage and analyze the table structure and transport requests.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to the specific table or error message.
  Documentation: Refer to SAP documentation for guidelines on modifying database tables and understanding the implications of such changes.
  
  If you continue to face issues, consider reaching out to your SAP Basis or development team for further assistance, as they may have more context on the specific table and its usage within your system.