Hello @alanwp81
Thank you for getting in touch with us!
If you deactivate the CartFlows plugin, your data will not be erased.
To delete the data, we have added an option in the CartFlows -> Setting.
The data will be deleted only if this option is checked/enabled and this deletion will be executed only when you delete the plugin from the website not when you temporarily deactivate the plugin.
Here is the screenshot of the setting: https://share.getcloudapp.com/P8u66pAq
So, you can temporarily deactivate the CartFlows plugin without any issues.
I hope this clarifies you.