Outlook updating organization forms
Everything was working just fine, and then the wave 15 upgrade hit us.
The corresponding folder permissions were adjusted so that everyone in the company can access the forms, and few users had the rights to publish new/manage existing Forms.
The symptoms suggest that there might not be a library for your locale.
It's easy enough to tell by trying to create one for your locale.
Yet it took a lot of time to narrow it down and solve it, mainly due to the lack of any documentation about those changes.
Microsoft and the Exchange PG in particular should really stop the annoying practice of pushing changes without as much as a single word on the changed functionality 🙁 Anyway, some more details for those that are interested. The customer migrated to Office 365 back in 2012, when public folders were not available in Exchange Online.