Deletion Policy

May be if you add more details about use case it will enable us to help better like policy of 1 process model are intended to be updated or multiple process models. If its just one then What do you mean with the sentence - 

marios6581 said:

To run this new PM for each new deploy

marios6581 said:

have a list of exceptions to not be updated when these are deployed.

The solution that I implemented in the past was:

• a PM for the post deployment feature
• this PM would look into the package that was deployed, get the uuids of the PMs present on the package.
• if the PM were on a list of exception, it would not update
• Else updates the data retention policy.

The plugins used were:

• Application Information Retriever

• Application Plugins

• Process Model Utilities

The solution that I implemented in the past was:

• a PM for the post deployment feature
• this PM would look into the package that was deployed, get the uuids of the PMs present on the package.
• if the PM were on a list of exception, it would not update
• Else updates the data retention policy.

The plugins used were:

• Application Information Retriever

• Application Plugins

• Process Model Utilities

You can probably achieve this by inspecting the deployment package. You can get it via the deployment API.

Once you have the zip, you can use Zip File Utilities to extract the contents and get the process model uuids.

You can may be design a process model that runs post deployment.

In it add a UI first where administrator can add the export log from the deployment (from design->deployments). Then you can configure expression fetch the process model uuids from the success objects in the log. (This last step, I don't know if this plugin can help you read the file or if AI Skills can help here, so you can give it a try). 

Lastly Process Model Utilties plugin can help you set the Cleanup settings for the uuids fetched in previous step.