What happens if I edit a financial or project plan type after using it on a project?

Once you associate a project plan type with a project or project template, or create budget or forecast versions using a financial plan type, you can't edit certain financial or project plan setup options.

These setup options include the primary forecast and approved budget designations, use of workflow, and the use of multiple transaction currencies.

Also, changes made to a financial plan type apply only to new financial plan versions. Similarly, there is no impact on existing project associations when you modify a project plan type.