Hello,

A mistake was made by one of our admins...

Some new project types have been created, but the "billing type" was mistakenly set to "not billed" - whereas these projects do need to use billing...

I have tried to correct this by modifying the project type, but it seems that for Client Bills that have already been created, the change in Billing Type is not propagated.

Question is : is it possible to modify in DB the "billing type" associated to an existing Bill ? 
I have checked on test instance that it is possible, but I would like to make sure that there are no unwanted side impacts.  

Or is there a better way to do this through the user interface ?

Is this something you can answer ?   Otherwise we have a lot of Orders and Bills to re-create ... 

Thanks