Scope around available capacity
Veterinary clinics often have a different constraint than other appointment businesses. Many do not need more demand everywhere; they need the right demand in the right openings. The first sprint should account for slow days, service mix, doctor availability, technician capacity, and how many replies the team can handle.
That is why batching matters. A controlled send to overdue wellness or pet dental candidates can be widened later if response volume is manageable. The campaign should never assume the whole inactive list should be contacted at once.