# How to create discount for certain carrier and certain flight?
* Go to the section **Prices - Commissions and discounts**.
* Click at button **"Add a rule"**.
* **Agency name** must be filled in.
* **Type of discount** must be choosen.
* Choose wished **carrier**.
* In section **Marketing carrier**s choose option: "Plating carrier only".
* In section **Operation carriers** get option: "Only listed and authorized".
* Continue with inserting exact IATA carrier code in section **Carrier IATA Code**.
* Move to the next section called **Flight restriction**.
* Specify your preferred criterions in section **Flights.**
* Continue with clicking at button **Add Flight** below.
* Insert again carrier IATA code and continue with specifications of certain flight numbers.
**GOOD TO KNOW: PLEASE ALWAYS FILL IN THE FLIGHT NUMBER IN 4DIGIT FORMAT.**
E.g.: If it is flight number 203 then you have to always enter the number this way 0203.
E.g. : If it is flight number 123 then you enter this way 0123.
* In section **Commission/Discount amount** just continue with specification of type and height of discount you are gonna provide in this rule.
* Specify criterions in section that relates to route in section **Routing**.
You may then specify other criterions in sections
* **Cabin class**
* **Fares, booking classes, and passenger type**
* **Time periods** - for how long time and what departure/return flights this rule should relate to.
* As soon as what was supposed to be specified save the rule by clicki at button **Save**.
GOOD TO TRY: You may check out if the rule works by seeking such flight on your frontend.
