Map the connections
Record internet links, internal networks, remote users, and connected sites. Identify which applications and traffic flows need to be maintained.
Size for the enabled workload
Ask for sizing against the security features you intend to use, rather than relying on the largest throughput number in a product summary.
Understand the recurring scope
Identify security subscriptions, OEM support, licence periods, and renewal dates. Keep the expected recurring cost visible alongside the appliance price.
Plan ownership and handover
Agree who manages changes, receives alerts, holds configuration backups, and handles vendor escalation after deployment.