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In order for changes to be made to the namespace, the namespace must also be set to Modifiable. To do this, go to transaction SE03 and select Transport Organizer Tools → Administration → Set System Changeability. In the lower section, look for the namespace /PRONOVIA/ or /PCH/ that you have just created and set the changeability to Change.
Note on transporting repairs
Repairs in such namespaces can only be included in local change requests. To transport the adjustments, proceed as follows:
Create a normal workbench request, which has the correct target system entered.
Select the function "Include objects..." in the context menu of the request.
Select the option "Object list of a request
Enter and confirm the number of the local change request.