Automation is not a question of what is technically possible. Most things are. The question is what the business is better for no longer doing by hand.
Automate the movement
Copying details from an enquiry into a CRM. Chasing a missing document. Producing the same report every Monday. Sending a reminder. These tasks move information from one place to another without adding anything to it. They are slow, error-prone and nobody's favourite part of the job. They are ideal candidates.
Keep the judgement
Deciding whether to take on a client. Handling a complaint. Agreeing a price for unusual work. Telling someone bad news. These moments carry the character of the business. Technology can prepare the information so the person arrives better informed, but the decision and the conversation should remain theirs.
The useful middle ground
Much of the best work sits between the two: the system does the preparation and a person makes the call. A draft reply that someone approves. A flagged anomaly that someone investigates. A suggested schedule that someone adjusts. This keeps accountability clear while removing most of the effort.
A simple question to ask
For any task, ask: if this went wrong, who would need to explain it, and to whom? If the answer is "nobody would notice", automate it fully. If the answer involves a client, a regulator or a member of staff, keep a person in the loop.
Start small and reversible
Automate one step, not a whole department. Make sure it can be switched off. Let the team who do the work tell you what annoys them most; they usually know exactly where the time goes.