We have been using QuickBooks online for five years - The standard built in role - which cannot be edited - provided access for all standard users to access the inventory reports from the products and services menu - this is now broken in QuickBooks Advanced.  I posted the "error" message stating you are working on and I do not understand why it is so hard to fix.

None of the custom roles you have invented suit the purposes of blocking users from management financial reports and the bank tab - while giving access to creating Po's, Invoices and running inventory reports. 

I also wonder how you expect an inventory manager to manage inventory if they have no access to inventory reports?  This does not make sense.

Currently the "custom" roles are also an all or nothing scenario - creating every variation is not difficult. - however none achieve what is needed.  If you could just restore the standard role to its previous access - that would be great.  I will ignore the non working custom roles until you develop them.