The system is installed, configured and working. Three months later the front desk is still keeping the register book, because that is what they trust and nobody has taken it away.
This is the normal failure mode, and it is a training and confidence problem rather than a software problem.
Train by role, not by feature
Vendor training tends to be a tour of the system. Everyone sits through everything, most of which does not apply to them, and nobody leaves confident about their own job.
Break it up. The receptionist needs to register a patient, find an existing one, book and move appointments, and take payment. That is her whole world and it should be taught as a sequence she can repeat, not as a set of screens.
The records officer, the nurse, the clinician and whoever handles HMO claims each need their own short, specific session covering their own path through the system.
Use your own data
Training on a vendor's demo database with foreign names and unfamiliar services produces staff who can operate a demo. Train on a copy of your own setup, with your services, your HMOs, your fee structure and realistic Nigerian names. Everything learned then transfers directly.
Train in the gaps, not in a block
A full day away from the desk is rarely possible, and retention from a single long session is poor anyway. Short sessions, repeated, during genuinely quiet periods, work better. Thirty minutes on registration, practised for a few days, then thirty minutes on appointments.
Expect a slower fortnight
This is the part practices do not plan for and then panic about. Everything takes longer at first. If the clinic is booked at full capacity during the changeover, staff will abandon the system under pressure and revert to paper, and that reversion is very hard to undo.
Book lighter for the first two weeks. It costs less than a failed implementation.
Name a champion on the floor
Someone on staff, not a manager, who learns the system properly first and becomes the person others ask. Questions that would never be raised with a vendor helpline get asked of a colleague immediately. This single arrangement does more for adoption than any amount of formal training.
Write your own one-page guides
Vendor manuals are comprehensive and unread. What staff use is a single laminated page per task, in your own words, with your own screenshots, taped where the work happens. Have the staff who do the job write them. The act of writing is itself the best test of whether they have understood it.
Set a date to stop the parallel system
Running paper and digital together is sensible for a defined period and corrosive indefinitely. Agree the date at the start, make it a few weeks rather than a few months, and on that date remove the book. Until it goes, the system is optional, and an optional system is never fully trusted.