Control Center: Linking an intake sheet field to metadata for existing projects


Using control Center, I am looking for a way to change project managers for existing projects. Once the project is provisioned the project manager is set at that moment in time. I have fixed this problem in the blueprint to link to the intake sheet. now if I change the project manager on the intake it changes the project manager on the metadata.

This works great but I have not been successful getting Global Update to create that link on previously provisioned projects. So going forward I can change the project manager on new projects but not on existing.

Any ideas?