How to create time sensitive vouchers
Voucherify provides three built-in features to create specific time limits for your codes:
Let's see how you can use them to create particular time windows and time-specific rules for codes' activity.
Start and expiration date
These dates mark out a period when a customer can redeem the code. Each redemption requested before a start date or after the expiration date is blocked by Voucherify and fails.
Start and expiration date defines a duration of a whole campaign/promotion. You can set it in the 4th stage of a campaign manager. 
Validity timeframe
By using Validity timeframe you can set recurrent time periods when the coupon is valid. Similarly to start and expiration dates, it is defined in the 4th stage of the campaign manager. 
A configuration process is described precisely in this short tutorial.
Vouchers are active only on specific days of week
Below the validity timeframe, you can define particular days of the week when vouchers from a campaign are active. For example, if you mark a checkbox and choose Monday, redemptions will be available only on Mondays until the expiration date. 
Vouchers active after publishing
Vouchers can be active for the specific duration after publishing. It means you can limit redemptions to a time window which starts with assigning a code to a customer. For example, you can send an email with a discount code active only 24h from the moment you pushed out a message to the customer.
To add this rule to your campaign, mark the respective checkbox in the 4th stage of the campaign manager. In the next step, define how many days/hours after publishing, the codes can be redeemed. 
Note
By 'publishing' Voucherify defines actions like sending a code from a dashboard or attaching it to a customer by using the API. After a voucher's publication, the code is assigned to a customer it was published for.
You can create more limits using validation rules, follow here to see the details.
That's it! Now, you're ready to implement time sensitive vouchers and create a promo campaign.
