Paused campaigns do not use any credits and retain all historic data, but data collection will not continue while they are inactive, and are not viewable until they are reactivated.
You can reactivate a paused campaign at any time as long as there are enough credits in the account.
Please note that in order to reactivate a campaign, there must be enough free credits in the account. If reactivating a campaign will put you over your usage limits, you will not be able to activate it.
How to reactivate a paused campaign
To reactivate one or more campaigns, check the box next to each and click the Pause in the top left of the table.
Confirm the action by clicking OK
The campaigns are now active again.