How To Fix TO123 - Namespace &3 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: TO - Transport Organizer and Tools

• Message number: 123

• Message text: Namespace &3 does not exist

What causes this issue?

Object &V1& &V2& is in namespace &V3&. However, this namespace does not
exist in your SAP system.
Objects from the namespace &V3& can only be edited if the namespace is
in the namespace tables.

System Response

Editing is terminated.

How to fix this error?

Choose an object name that is not assigned to the namespace &V3& (this
means that it cannot begin with &V3&).
For a list of the namespace prefixes in the SAP system, go to the
Transport Organizer tools (Transaction SE03) and choose -> <LS>Objects
</> -> <LS>Namespace Information System </> -> <LS>Select namespace</>.

Error message extract from SAP system. Copyright SAP SE.