You may need to extend a trial subscription for a couple of reasons:

• The customer will be sending the product back
• There have been shipping delays

1. Open the google spreed sheet available here :

https://docs.google.com/spreadsheets/d/1-QL4VkuJgOvn3mS7sD4fie1zjsVbfXqeuorqRTyJb9Y/edit#gid=494181682

2. Enter the required values for Date, Agent and Order ID. Set the Next Bill Date to 1 month in the future.