You have the option to set different validity periods for vouchers. To do this, please go to "Manage Offers > Ticket validity"
1. Gift Voucher
If you do not enter a custom setting, the validity of a gift voucher is always one year from the date of purchase.

2. Value Voucher
If you do not enter a custom setting, the validity of a value vouchers is always three year from the date of purchase.

If you wish to change the validity, choose the first point under either "Value Vouchers Expiration Date" or "Gift Vouchers Expiration Date" and enter your desired validity period.
Note
If you enter a 5 in the free field for "Value Vouchers Expiration Date", then each voucher is valid for 5 years from the date of purchase.
Example
If the voucher was purchased on 23.12.2018 it can be redeemed until 22.12.2023 23:59 by the customer.
Save your change by clicking "Save".