Did you know that you can change a default expiration length of a gift certificates? 

A default expiration length can be changed in Settings - System - Settings - Certificates section - Default certificates days to expiration. 

The setting is applied for a newly created certificates only, it does not extend the validity of issued ceritificates.

Certificate validity prolongation can be done directly from the certificate detail, which you can access via the main menu Certificates - List of certificates. To be able to set a new expiration, you must have the "Gift certificates - Voucher expiration extension" user right enabled.

We have also added a log of the certificate use.