Do I need to provide my store username and password?

No, you do not need to provide us with your store username and password.

Instead, you can add us as collaborators to your store account, which will not count against your limited staff member quota.

Once you provide us with your store address and PIN code (if applicable), we will send you a collaborator request, and you can then accept it to begin the project.

You may also restrict our access to your store if desired.

Please follow this tutorial on how to do that.