How To Fix DO402 - Active runtime object already exists for another object type

DO402 - Overview

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 402

• Message text: Active runtime object already exists for another object type

What causes this issue?

There is an inconsistency:
An active nametab (runtime object) should be generated for the
activated object. This is not possible since an active nametab already
exists for another object type. This nametab belongs to an object
without a dictionary object but which can have a database object.
The following conflicts could arise:

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

Activated object Object type of the active nametab
--------------------------------------------------------------------
data element transparent table
or table type or logical pooled or cluster table
or physical pooled or cluster table

System Response

How to fix this error?

Analyze and correct the inconsistency in the nametab without dictionary
object. In particular, check if a database object exists and contains
data which must be retained.
There are two ways to correct the inconsistency:
You can delete the inconsistent object and then activate the activated
object again.
Alternativelly you can create a Dictionary object for the nametab and
choose another name for the object with name conflict (delete the
object and create it again with a different name).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DO402 - Active runtime object already exists for another object type ?

  The SAP error message DO402, which states "Active runtime object already exists for another object type," typically occurs in the context of SAP development, particularly when dealing with ABAP programs, function modules, or other objects in the SAP environment. This error indicates that there is a conflict with the runtime object that is already active in the system.
  
  Cause:
  
  Object Conflicts: The error usually arises when you attempt to activate or modify an object (like a class, function module, or program) that has a runtime object already active in the system, but that active object is of a different type.
  Transport Issues: If you are working in a transport environment, it may occur if there are inconsistencies between the objects in the transport request and the objects already in the system.
  Development Environment: It can also happen if multiple developers are working on the same object or if there are multiple versions of the