You have no choice but to change the file names. However, when you do it with the developer tools in FileMaker Pro Advanced, all links are updated automatically and won't break.
The other choice obviously is to keep just one version of the application and code for "multi-tenancy" and hide the data from each other...
thanks, the really are the only 2 sensible choices.
I never thought of using the developer tool for that actually, that would likely be a good answer as I can then just rename them before deployment..