We have added a new deployment property in a template categories for one of the application model.
During Deployment, we found an issue where the existing deployment plans says that deployment property does not exist.
The error you are getting is a valid error as per product design. Please understand below analogy with respect to a deployment in CA Release Automation (RA).
Deployment Templates: These are blueprint of a deployment. It can be considered as blueprint of building. You are allowed to make changes/addition to this blueprint as they are mutable and just a design entity.
Deployment Plans: These are casted instance of a deployment template which is immutable. Any design addition/modification is not permissible.
Release : 6.6, 6.7, 6.x
Component : CA RELEASE AUTOMATION CORE
To incorporate a change made in Deployment Template in the Deployment Plan, please create a new Deployment Plan from modified Deployment Template.