Anyone know how to relink a project to an invoice if you change the customer to a customer name different than whats on the project? For example, a Project was created for Customer = Sam. Invoice was created off project, but the invoice addresssee/customer field was changed to another customer name, Lewis. When the change was made, the link to the project was removed.

Assuming the project/invoice link works the same as the order/invoice link, then you won't be able to "re-link" them. You would need to delete the invoice and re-invoice if you want it to be linked

That's what I kind of was thinking too. Thanks so much!

I've come really close to including a standard workflow on accounts to lock the customer field once the invoice is created.