If a tenants bond is part of the Bond Ledger conversion balance, or the bond has been previously paid, it can be entered against the Tenancy.  Select Bonds on the left side menu, then click Load Existing Bond.

Bonds may be held by a Bond Authority, in the Bonds Ledger or by the Property Owner:

If Bond Authority is selected, also select the Bond Authority from the list, this needs to be set up in Contacts and connected to Trust Account settings.

Creating a Bond Opening Balance in this way does not alter the balance of the Bonds ledger.  Caution is advised when setting up bonds which are held in trust as existing bonds, after all bond details are entered the held in trust balance showing in the Bond History area of the Trust Accounts page should match the Bond Ledger balance from the ledgers page.