Nick here from Shopify.
Can you just clarify what login you for this exactly, please? My mind instantly thinks of your Shopify store login, but it's possible to log in with your email address also. Once to confirm which exact log in you mean, I can take a closer look into this for you.
Looking forward to hearing from you.
All the best, Nick
Thanks for getting back to me about this @linpap.
From what you're saying, it seems like a membership/ lock app might be what you're looking for. The primary function of one of these apps would be to have certain aspects of your store locked for members. Each app would have different features regarding your question of customers being able to sign in with usernames as well as emails, and it would be worth exploring through the apps to find one you resonate with that does what you're looking for it to do. I had a look through the Shopify app store to find some of the apps which I thought could potentially work for you. Let's take a look at them below:
Hopefully one of these apps can do what you need it to do.
|an hour ago|
|2 hours ago|