When I try to add an user to my organization, I get an "Unable to join <Organization_Name>'s FSM account" error stating that the user is already part of another organization. How do I resolve this?
At a time, a user can only be part of a single Zoho FSM organization. You will not be able to add a user to a Zoho FSM organization if they are already part of another organization.
Delete the user from the organization they are currently part of and then you can add them to a new Zoho FSM organization.