You can set this up within Business Boosters > Loyalty.

Start by configuring your Loyalty settings:

Rewards are given based on the number of accumulated stamps, so set the Valuation to determine if stamps are earned per:

Stamp increment is how many stamps are earned per the above. For example, you could issue 10 stamps for booking, though we recommend keeping to the default of 1 for simplicity.

Reset threshold is the number of stamps after which the customer starts again from 0. This should match the reward that requires the highest number of stamps. For example, a shop that has the following reward tiers:

The reset threshold should be set to 10 stamps because there is no reward after this, so there is no use in accumulating more stamps. Instead, the customer should start again from zero (like finishing one loyalty card and getting a fresh one).

You can click Manage Services to exclude certain services from the Loyalty scheme (i.e. no stamps will be given):

Now create your reward(s) which can apply to bookings or product sales (e.g. a free service, or a discount on a product sale):

If Bookings using this reward count towards the next reward is ticked, say a customer is rewarded with a £5 discount code upon 5 bookings, a future booking that they use this on will also earn them a stamp.

Reward expires after is the length of time the customer has to redeem the Loyalty reward after earning it.

Once you are all set, click [Activate Loyalty] to make it live:

Here are a couple of example setups to give you an idea. If you have product sales, you can perhaps implement rewards for both bookings and products: