VLAN Assignment with RADIUS

Hey everyone, I am trying to do the following with RADIUS There is 1 AP with 2 SSIDs - lets cal them "B" and "P" I want RADIUS to assign VLAN20 to "P" and VLAN40 to "B" I have found no other method online than configuring static users in the users file with VLANs assigned to them. In my setup users are authenticated with LDAP. Do I really have to assign every single user the VLAN or is there a simpler way like assigning the VLAN to a virtual server running on a different port or something focussed on the SSIDs? Kind regards