You reach a supplier’s shop through a specific link — usually the one you followed to accept your invitation, or one your supplier gives you directly. Once you’re there, you’ll see that supplier’s own logo and branding.
There’s currently no in-app list of the suppliers you buy from, and no way to switch between them from inside FikaTrade. Each supplier is its own separate link — keep a bookmark or the original invitation email for each one.
If a link to a supplier’s shop doesn’t work, or you can’t find your way back to it, contact that supplier directly — access to their ordering experience is something they control, not something you can set up yourself.