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

SAP Error Message - Details

• 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 same object in the system.
  
  Solution:
  
  Check Active Objects: Use transaction SE80 or SE11 to check for active objects in the system. Identify if there is an active object of a different type that is causing the conflict.
  Deactivate/Remove Conflicting Objects: If you find an active object that is causing the conflict, you may need to deactivate or delete it. This can be done using transaction SE80 or SE11.
  Clear Buffer: Sometimes, clearing the buffer can help. You can do this by using transaction code /n/SAPAPO/OM00 and then selecting "Buffer" to clear it.
  Transport Request: If the issue is related to transport requests, ensure that all objects are correctly included in the transport and that there are no inconsistencies. You may need to release and import the transport request again.
  Check for Locks: Use transaction SM12 to check for any locks on the objects that might be causing the issue. If there are locks, you may need to release them.
  Restart the Development Environment: In some cases, simply restarting the SAP GUI or the development environment can resolve temporary issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE80 (Object Navigator), SE11 (Data Dictionary), and SM12 (Lock Entries).
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error. SAP frequently updates its knowledge base with solutions for common issues.
  Documentation: Review SAP documentation for best practices in managing objects and transports to avoid conflicts.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.