Can I stop my staff from giving discounts or changing fares without my approval in the travel agency software?

Yes, in most cases you can control what your staff are allowed to change, and discount or fare editing is one of the things that is usually locked down by role. The normal way this works is that each staff login is given a role, and the role decides what that person can see and do. A counter staff member might be able to search, book and issue, while only a manager or owner role can alter a markup, apply a discount, or override the selling price that the system worked out. If someone without that permission opens a booking, the discount field is either hidden or greyed out, so they cannot change it by accident or on purpose.

Where agencies find this most useful is setting a discount ceiling rather than blocking discounts completely. Instead of stopping your staff from ever reducing a fare, you let them give up to a certain amount on their own, and anything beyond that has to be approved by a manager before the booking can be completed. That keeps your counter moving for small goodwill gestures while protecting your margin on the bigger ones. You can also usually see a record of who changed a price and when, which settles arguments at month end.

I should be honest that how fine grained this gets depends on your plan and on how the software is set up for you. Some setups offer a simple two level split between staff and admin, while others let you build your own roles field by field. Approval workflows, where a request waits for a manager to accept it, are not available everywhere either. It is also worth remembering that the software can only control what happens inside it, so a staff member taking cash at the counter is a separate matter for your own office rules.

The best next step is to list the handful of things you genuinely do not want your counter staff touching, then ask us to confirm which of those your current plan can enforce and whether approval limits are included.