Registered user access to other site 
Author: Sam S.I am creating an e-comerce website (site 1) that will offer multiple subscription/membership-type services and some products for sale. However, on one of those subscription services that will be offered in Site 1, I would like sell it in a new and separate e-commerce website (site 2), with its own domain, and would offer only this one subscription service.
Site 2 will be up and running offering this subscription service before Site 1 is completed.
1. Can the registered users in Site 2 be automatically registered in Site 1 when Site 1 finally gets up and running?
2. When both Sites 1 and 2 are running, can those registered in Site 2, be automatically registered in Site 1?
3. Can registered users in Site 2 while logged in in Site 2 gain access to the member's area in Site 1?
If any of these are possible, how do I make it possible?
Hello.If you are using a version of the program that still allows you to create several databases, then you can create for each site a separate database for all tables except for the table with users.And then they will create another database with a table of users and specify this table in the settings of both sites.Perhaps this will help you solve your tasks.