How To Fix APPLG008 - DC: Attribute with this key already exists in DC; change application

APPLG008 - Overview

• Message type: E = Error

• Message class: APPLG - Application Graphics Messages (Graphic Proxy Framework)

• Message number: 008

• Message text: DC: Attribute with this key already exists in DC; change application

What causes this issue?

The application tried to enter an object in the data container. An
object with the same key already exists. The new object was not
created.

How to fix this error?

Check the programming which uses the data container. The error is not
in the data container but in the programming that uses the data
container.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

APPLG008 - Details

• The SAP error message APPLG008 indicates that there is an attempt to create or modify an attribute in a Data Container (DC) that already exists. This typically occurs in the context of SAP applications that utilize data modeling, such as SAP HANA or SAP BW.
  
  Cause:
  The error is triggered when:
  
  You are trying to add an attribute to a data container (like a data model or a table) that already has an attribute with the same key or name.
  There may be a naming conflict due to duplicate entries in the data model.
  The attribute might have been defined in a different context or version of the data container.
  
  
  Solution:
  To resolve the APPLG008 error, you can take the following steps:
  
  
  Check Existing Attributes:
  
  Review the existing attributes in the data container to confirm if the attribute you are trying to add already exists.
  Use the relevant transaction or tool (like SAP HANA Studio or SAP BW Modeling Tools)