User limit
The user limit constraint sets a maximum number of times a single participant can redeem a promotion over its entire validity period. Once a participant reaches the limit, the promotion no longer appears in their list -- even if the promotion is still active for other participants.
How it works
The system tracks the number of times each participant has applied the promotion. When that count reaches the configured limit, the promotion is suppressed for that specific participant. Other participants are not affected and can continue to redeem it up to their own individual limit.
Setting the user limit to 0 disables the constraint -- participants can redeem the promotion an unlimited number of times.
When to use it
A user limit is essential whenever the promotional benefit is generous enough that repeated redemption by the same person would become economically problematic. Without a user limit, an engaged customer could theoretically apply a Booster or Extra Fixed Reward on every transaction throughout the promotion's entire run.
Common configurations:
- 1 -- one-time promotion, such as a welcome offer for new participants or a birthday reward.
- 3 to 5 -- limited-use campaign that rewards repeat engagement during a short period without enabling unlimited use.
- Unlimited (0) -- appropriate when the promotion is inherently constrained by other factors, such as a very narrow time range or a high minimum spend, that make excessive redemption unlikely.
The user limit controls how many times one person can use a promotion. The global limits constraint controls the total redemptions across everyone. You can configure both simultaneously to cap usage at both the individual and the aggregate level.