CHW-4210 InvitePending

a pending invitation already exists for this email; revoke it before issuing a new one

Default message: a pending invitation already exists for this email; revoke it before issuing a new one
HTTP status: 409 (client)

Problem. A pending invitation for this email already exists in the org. Cause. An earlier invite has not yet been accepted or expired. Fix. Wait for the original invite to expire, or revoke it and re-issue. HTTP 409.