There are two options you may use to disconnect Mapsly from your HubSpot account:
Disconnect HubSpot data source. This option temporarily stops syncing data between Mapsly and HubSpot
Delete HubSpot data source. This option deletes all data previously received from your HubSpot account.
Both disconnection and deletion options do not affect data in your HubSpot account.
Disconnect the HubSpot data source
To temporarily disconnect the HubSpot data source just switch-off toggle next to your data source:
You may switch it on again later, and Mapsly will start syncing data.
Delete HubSpot data source
To Delete the HubSpot data source and all data received from the HubSpot account:
Go to Setup.
In the Context menu for your data source Choose 'Delete' and confirm deletion.
Note, that you may later add deleted data source again, by clicking on
icon.