Only targets User Upgrades which are marked as 'recurring'.
Fully phrased, and dumps the content of the transaction details to the phrase printed for each active user upgrade.
Be aware that the notification message can potentially expose private PayPal details that you do not want all staff to see.
Contributing features or bug fixes
Please create a Github Pull request via the "More Information" link.
If you appreciate this add-on, please consider a contribution via PayPal. Details will be provide via private conversation.
Please contact me if you wish for different licencing arrangements.