Very good news for all Microsoft Project customers. Microsoft now offers all extensibility capabilities from Project Plan 3 in Project Plan 1.

You can now start using extensibility capabilities with a Project Plan 1 (previously only available for users in Project Plan 3 and above).

This announcement applies to all existing or new Microsoft Project customers.

Project Plan 1 users can now:

- Create and use custom columns on tables in the Project solution

- Create and use 5 custom tables in the Project App

- Connect to Project for the web with a third-party application

- Access to all capabilities in the Project Accelerator Solution