How To Fix TPDA161 - No column in table &1 can be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: TPDA - Debugger

• Message number: 161

• Message text: No column in table &1 can 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 TPDA161 - No column in table &1 can be changed ?

  The SAP error message TPDA161 ("No column in table &1 can be changed") typically occurs when you attempt to modify a database table in a way that is not allowed by the system. This can happen for several reasons, and understanding the cause is essential for finding a solution.
  Causes:
  
  Table Type: The table you are trying to modify may be a pooled or cluster table, which has restrictions on certain types of changes.
  Field Attributes: The fields in the table may have attributes that prevent them from being changed, such as being part of a primary key or having a specific data type that does not allow modification.
  Database Constraints: There may be constraints or dependencies in the database that prevent changes to the table structure.
  Transport Requests: If you are trying to transport changes to a table structure, the transport request may not be correctly configured or may not include the necessary objects.
  
  Solutions:
  
  Check Table Type: Verify if the table is a pooled or cluster table. If it is, you may need to create a transparent table instead, as these types of tables have limitations on modifications.
  Review Field Attributes: Check the attributes of the fields in the table. Ensure that you are not trying to change fields that are part of a primary key or have other restrictions.
  Database Constraints: Review any database constraints that may be in place. You may need to drop or modify these constraints before making changes to the table.
  Transport Configuration: If you are working with transport requests, ensure that the transport is correctly configured and includes all necessary objects. You may need to create a new transport request or adjust the existing one.
  Use SE11/SE14: Use transaction codes SE11 (Data Dictionary) or SE14 (Database Utility) to check the table definition and make necessary adjustments.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message. SAP frequently updates its knowledge base with solutions for common issues.
  Documentation: Refer to the SAP documentation for information on table types and their characteristics.
  Community Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered the same issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or ABAP team for further assistance.