Look for the copy-paste
Wherever someone moves text between two systems, summarises a thread or classifies an incoming request, there is a candidate for automation that does not require a new interface.
Ground answers in your own data
Retrieval over your documents, with citations and access control, turns a plausible-sounding assistant into something an employee can defend to a customer.
Measure before you ship
Build an evaluation set from real examples and score changes against it. Without that, every prompt change is a guess and every regression is invisible.