How To Fix DT230 - Field name & is reserved (Do not use structure as include in DB table)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 230

• Message text: Field name & is reserved (Do not use structure as include in DB table)

What causes this issue?

In a structure, you are using a field name which is reserved by the
database.

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?

This will only cause an error if the structure is used in a table as an
Include.
You cannot use the table as an Include in a new database table and may
also not add it to a database table which is already active.
The table activating program rejects this because use of this database
table could cause errors in certain database systems.
A warning is output for tables which are already active and which have
such an Include.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT230 - Field name & is reserved (Do not use structure as include in DB table) ?

  The SAP error message DT230 indicates that a field name you are trying to use in a database table is reserved and should not be used. This typically occurs when you attempt to include a structure that contains reserved field names in a database table definition. Here’s a breakdown of the cause, solution, and related information for this error:
  Cause:
  
  Reserved Field Names: SAP has certain reserved field names that cannot be used in database tables. These names are often related to system fields or have special meanings within the SAP environment.
  Including Structures: If you are trying to include a structure in a database table and that structure contains reserved field names, you will encounter this error.
  Naming Conventions: The naming conventions in SAP can lead to conflicts if not adhered to, especially when using standard structures or fields.
  
  Solution:
  
  Check Field Names: Review the field names in the structure you are trying to include. Ensure that none of them are reserved. You can refer to SAP documentation or the ABAP Dictionary (transaction SE11) to check for reserved names.
  Rename Fields: If you find that the structure contains reserved field names, consider renaming those fields in your custom structure to avoid conflicts.
  Avoid Including Structures: Instead of including the entire structure, you can manually define the fields you need in the database table. This way, you can control the names and avoid using reserved names.
  Use Custom Structures: If you need to use a structure, create a custom structure that does not contain any reserved field names and use that in your database table.
  
  Related Information:
  
  ABAP Dictionary (SE11): Use this transaction to view and manage database tables, structures, and data elements. You can check the properties of fields and structures here.
  SAP Documentation: Refer to the official SAP documentation for a list of reserved field names and best practices for naming conventions.
  SAP Notes: Check for any relevant SAP Notes that might provide additional guidance or updates regarding this error message.
  
  By following these steps, you should be able to resolve the DT230 error and successfully define your database table without conflicts.