How long will my Clover Connect Payment Processor plugin data be kept after deactivation?

How long will my Clover Connect Payment Processor plugin data be kept after deactivation?

The data pertaining to the Clover Connect Payment Processor plugin is primarily associated with the reference numbers and auth numbers for the credit card transactions done when the plugin was Active, and therefore is retained for reporting purposes and is never deleted. 
Plugins in Tagrain are either Subscription Based or License Based. So the price that you pay for your plugins is based on the number of POS terminals that you have in your setup and the number of licences that you have acquired.
There will be no change in your subscription amount in the current billing cycle if you are only deactivating the Clover Connect Payment Processor plugin AND not updating your Store / POS count.
Activating or Deactivating the Clover Connect Payment Processor plugin will not affect your subscription amount for your next billing cycle because the plugin is free.