Hi Rob,
Thanks for your update.
As far as I know, Partner Action Pack includes 5 E3 licenses. When you mentioned “reduce the license number from 1 to 0 on the office 365 subscription”, do you mean that you have purchased one more E3 license except for the 5 E3 licenses, now you want to cancel it?
In this situation, I would like to collect some information about your Office 365 tenant, so that we can check the detailed information from our side. To protect your privacy, I have sent you a private message. Here are the steps to access the Private Message:
1. Go to Your details on the upper right corner of the forum.
2. Click Private messages.
3. Click the subject title of the response to read the message.
Best Regards,
Anna