A booking dashboard is only useful if staff can see when a booking changes. Keeping that view up to date usually means connecting database writes, server responses and browser updates. Convex handles part of that coordination through reactive queries.
It is worth considering for applications where several people work with the same changing information. The decision still depends on your data model, operating costs and support requirements.
What reactive queries do
Convex tracks the database records used by a query and updates subscribed clients when the result changes. Its client libraries manage that subscription. The Convex documentation explains the mechanism and its automatic query caching.
For a service business, that could mean a dispatch screen showing a new job without someone refreshing the page. For a stock dashboard, it could mean staff seeing an updated quantity after a sale. Those are examples of application behaviour, rather than a promise that the platform handles every business rule for you.
The work your team still owns
You still need to decide who may read or change each record. A customer should only see their own bookings, and a staff member should only see the branches they manage. Test those rules on the server, including requests that bypass the interface.
You also need to design what happens during a lost connection. A screen can look current while the device is offline. Show connection status where a stale value could cause a booking conflict or an incorrect stock decision.
Questions for a South African project
Before adopting a managed database, document the information it will hold, the service locations available to your account, the backup process and how you would export the data. Measure response times from the networks your customers use.
Estimate the workload with a realistic number of staff, records and live subscriptions. A small demonstration with two users tells you little about a busy trading day. Include support time and any migration work in the cost comparison.
If you already have a relational database and reports that depend on SQL, prototype the difficult reporting query before changing the architecture. Rewriting working reports can cost more than the new interface saves.
Try one complete workflow
Build a small booking or task workflow with two accounts, different permissions and an interrupted connection. Test data changes, recovery and export. Record what became simpler and what became harder to operate.
That gives your team evidence for a database decision. If you need help scoping the trial, contact webrack with the workflow and the systems it needs to connect to.