This question relates to annual subscriptions with a fixed end date. If you change the end date for the subscription product, it will not affect any member's subscriptions that already exist.
For example, you set up a subscription product with an expiry date of 31/08. John Smith buys a subscription on 10/09/13 and receives a subscription expiring on 31/08/14. You then change the expiry date of the subscription product to 30/09. When John Smith renews his subscription (and it doesn't make any difference whether he renews before or after 31/08/14), his subscription will be extended to 31/08/15.
So, if you want to shift your end dates (e.g. because the organisation decides that it would prefer to collect in the money at a different time of year), then you will need to change the end date of the existing subscriptions. Currently, there isn't a feature to make bulk updates to subscription end dates, but this is in our development plan, so check our home page for updates. In the meantime, if you need to bulk update subscriptions, please contact us.
