'Closing' the Fulfillment Status is the best thing to do to communicate that you are 'done' with a project.
Here's a list of examples to get you inspired:
All the items are checked back in by our team and no further action is required on item movement for this project. (ie, no damages, everything made it back, etc)
Any damaged or missing items have been marked as a Set Aside
We've charged the client for damages or missing items.
All tasks have been completed on the project.
All of client's outstanding questions on final invoice have been addressed.
No remaining balances are due on the project.
Any Overpayments have been remedied.
Event Photos have been loaded to the Files Tab.
All event paperwork and photos have been tagged to the appropriate client, company or venue
I've paid our staff for the job.
In conclusion, 'Closing' the Fulfillment Status is the best thing to do to communicate that you are 'done' with a project.
Pro Tip: Add the 'Fulfillment Status' Custom Column to quickly see which projects have open or closed Fulfillment statuses.