I have a class implementing Process.plugin interface and being used on an existing flow. Whenever I try to make any changes on the flow and save I get the We can't find the Apex callout for class . It may have been deleted or changed.
The same does work on higher environments . I'm not able to understand what am I missing here?
I tried resaving the class but it didn't work. Also, I thought of removing the action and again adding the same but when I add Apex Action on the flow and select Legacy as type I don't see the apex action on the list although there does exist a class ( can see this on higher orgs ).