I purchased Snapied through AppSumo about 2 years ago and am now implementing it. Regarding the developer API/SDK: When I white-label the solution for my customers, I want to understand how user isolation works. Specifically:

Can each customer sign in to my site independently?
How is data segregation handled - will each customer's work be private and inaccessible to other customers?
What authentication and access control features are available through the API/SDK to support multi-tenant usage?

Thanks for your help with this!
Best regards,
Jane