How To Fix DT287 - Change field name & and place in your own existing namespace

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 287

• Message text: Change field name & and place in your own existing namespace

What causes this issue?

The field name used could already exist in a customer target system
because it lies in the customer namespace.

System Response

The table is activated.

How to fix this error?

You have your own prefix namespace with producer role. Please choose
the field names of the table from this namespace in order to avoid name
collisions in the customer system when they are released.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT287 - Change field name & and place in your own existing namespace ?

  The SAP error message DT287 typically indicates that there is a conflict with the naming of a field in your ABAP program or data dictionary. This error occurs when you attempt to use a field name that is either reserved or already in use in the SAP standard namespace, which is not allowed for custom developments.
  Cause:
  
  Field Name Conflict: The field name you are trying to use is already defined in the SAP standard namespace or is a reserved name.
  Namespace Restrictions: SAP has specific naming conventions and restrictions for fields, especially in the standard namespace. Custom developments should use a defined namespace (usually starting with a specific prefix assigned to your organization).
  
  Solution:
  
  Change the Field Name: Modify the field name to something unique that adheres to your organization's naming conventions. Ensure that it does not conflict with any existing names in the SAP standard namespace.
  Use Your Own Namespace: If you are developing custom fields, ensure that you are using a namespace that is designated for your organization. This typically involves using a prefix that is unique to your company (e.g., Z or Y).
  Check Data Dictionary: Use transaction SE11 (Data Dictionary) to check if the field name you want to use is already in use. If it is, choose a different name.
  Transport Requests: If you are working in a development environment, ensure that your changes are included in a transport request for proper deployment to other environments (like QA or Production).
  
  Related Information:
  
  Naming Conventions: Familiarize yourself with SAP's naming conventions for custom objects. Custom objects should typically start with 'Z' or 'Y' to avoid conflicts with standard SAP objects.
  ABAP Development Guidelines: Review the ABAP development guidelines provided by SAP to ensure compliance with best practices.
  SAP Notes: Check SAP Notes for any specific guidance or updates related to the error message DT287.
  Testing: After making changes, test your program or data dictionary object to ensure that the error is resolved and that the functionality works as expected.
  
  By following these steps, you should be able to resolve the DT287 error and continue with your development work in SAP.