The companies the association hires come into the platform with restricted access to manage their own after-school activities. The board does not act as a go-between, and nobody sees data that is not theirs to see.

Most associations do not run the after-school activities themselves: they hire them in. The language school, the sports club, the tutoring centre, the robotics workshop. And they all need the same thing: to know who is signed up to their activity, who has dropped out, who has joined halfway through the term and who turns up each day.
Without access of their own, that information can only reach them one way: somebody on the board exports a list and sends it over. And sends it again every time something changes. In practice that means spreadsheets with children's names and details going round by email and by WhatsApp, different versions in circulation at once, and a volunteer acting as a go-between for two parties who could deal with each other directly.
The usual alternative is worse still: giving the company the association's own login. That solves the list, but it opens the door to the members, the fees, the accounting and everything else.
Each company gets its own access with the outside company role, which lets it into the after-school activities it runs and nothing else. It comes in, handles its own business, and that is as far as it reaches.
The company sees the pupils in the activities it runs and nothing more. It does not see the membership list, the fees, the accounting or another supplier's activities.
There is no handful of fixed profiles to choose between: the roles are configured around what each person or company actually needs to do.
When a family signs up or drops out, the company sees it at once. There are no lists to forward and no versions going stale.
The families' details stop travelling about in spreadsheets by email and stay where they belong.
The association is responsible for the data it handles, and much of it belongs to children. When that information is shared with a supplier as a loose file, the association loses control: it does not know how many copies exist, who else has received them or what happens to them when the contract ends.
With access limited by role, the supplier looks up what it needs inside the platform, and the day it stops working with the association its access is withdrawn and it sees nothing. There are no scattered files to get back.
Stop forwarding lists and give each company the access it needs, and not one bit more.
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