Birthdays are a special reward activity where your users give you their birthday and are rewarded with store credit, a free gift, a discount code or a collectible on that day.
Here is how you set this up in Toki:
Here is what your members see in their wallet when they engage with this activity:
When it is their birthday, they will see the discount code show up in the coupon block. Or the gift show up in the gift block automatically. Like this: