While this isn’t so much of an issue when booking a religious wedding, if you’re hiring a private venue and a celebrant you need to make sure your marriage will be legally valid.
Different countries have different rules for a legal ceremony (even within the UK!) so it’s important that you’re aware of the differences. A religious ceremony or one conducted by a registrar are legal with a valid licence however, a celebrant led wedding is not (unless in Scotland).
Generally, for a marriage with a celebrant to be legal, it must be registered at your local register office and a statutory ceremony performed, which is essentially just the admin side of things to get your marriage certificate. But it’s important to check as rules can change.