Work out whether your council requires a licence, and record it.
Some councils require a licence to let — always for a large HMO, and in some areas for every rental.
Abodient tracks the licence once you have established whether you need one. Working out whether you do is a step only you can take.

On a property's Property Details → Compliance triggers, you answer Selective licensing in this area? — Licensed, No, or Not sure.
There is no postcode lookup behind it: the answer is yours to find. Most councils publish a checker, so search your council's site for "selective licensing", or call their licensing team.
Answer Licensed and a licence duty appears. Answer Not sure and nothing is created — which keeps your risk figure honest, but also means you are told nothing, so it is worth resolving.
You do not answer a licensing question for an HMO. Say a property is an HMO in the same Compliance triggers, and an HMO Licence duty appears by itself.
Once the duty exists it behaves like a certificate: upload the licence, confirm its expiry, and it turns valid and counts on the Compliance page. It sits under the Licensing category there.
The upload and confirmation work the same for any document — "How we read your documents" shows those screens.