By creating either a 100% or 50% Discount and setting a Basket Validation Rule on your Price Table that limits the applied Discount to 2 tickets in a basket.
This will mean that when the user applies the coupon code, it will make the basket amount 50% off the price of 2 Full Price tickets.
NOTE - because of how Basket Validation works with limiting the tickets that enter a basket, this currently only works when applying this kind of Discount at Box Office.
You can follow these steps:
1. Create Discount
a) Go to the Discounts page, add a New Discount and enter details
b) There are 2 options when creating a 2 for 1 promo offer:
100% Discount - this will take off the full price of 1 of the 2 tickets in the basket
50% Discount - this will take off 50% of the price of 2 tickets in the basket
Learn more - Create a Discount
2. Set a Basket Validation Rule - 100% Discount
a) Go to your Event's Price Table
b) Create a New Basket Validation
c) Set a Rule that the basket:
Must have at least 2 tickets from your Full Price Variant
Can't have more than 1 ticket from your chosen Discount
Only if the basket has at least 1 ticket from your chosen Discount
NOTE - If you can't see the Variant options you're expecting, it's likely because the Price Table hasn't been saved with those Variants.
This means that when the user adds 2 Full Price tickets to the basket and applies the coupon code, it will take off 100% of 1 of the tickets.
3. Set a Basket Validation Rule - 50% Discount
a) Go to your Event's Price Table
b) Create a New Basket Validation
c) Set a Rule that the basket:
Must have at least 2 tickets from your chosen Discount
Can't have more than 2 tickets from your chosen Discount
Only if the basket has at least 1 ticket from your chosen Discount
This means that when the user adds 2 Full Price tickets in the basket and applies the coupon code, it will turn the 2x Full Price tickets to 2x 50% discounted tickets.
Learn more - Basket Validation
4. Applying Discount on the Box Office page
a) On the ticket page, click Add Discount either:
Before you select any tickets and select the discounted prices to add to your basket
Or after you select the full priced tickets and the Discount will take the price off the basket value
b) Depending on which discount option you go for, it will take either 50% off both tickets or 100% off one ticket