I just got frustrated because I couldn't log in to the forums. It turned out that I was trying to use my email address to log in instead of my username so it was my fault but is there any reason why nop couldn't accept either username or email?

Image that you have two customers:
Customer1. Email: somemail1@example.com. Username: username1
Customer2. Email: somemail2@example.com. Username: somemail1@example.com

You enter "somemail1@example.com". Which one should be logged in this case?

What's the use case for having 2 customers with the same email address? It's fairly commonplace to consider emails unique so I'm curious to know why it isn't in nop.

Emails are distinct, but the email of Customer1 is the same as the username of Customer2 in my example above.

What if when creating the username it verified against existing usernames along with email addresses? That would ensure that no duplicates are being used.

But there are already a lot of existing live stores powered by nopCommerce. Some of them can have customers similar to what I described above. They'll just not be able to upgrade to the further versions in this case.

I think that it's great to offer the option to login with the email OR with username at the application level, but I disagree that the user should be offered the choice to use either one or the other. That would be too confusing on both the development implication, and also for the users themselves.

Just the opposite, I suggest too allow duplicate emails, I've just posted another post about that,  giving a use case : order managers wanting to place orders for different department or legal entities, on behalf different 'customers' (usernames), but using a single email (a scenario that I am currently experiencing).

There needs to be a forgot username option.  I am getting alaot of customers forgetting it is a username, this may also help with people reconizing it is a username and not an email.

thrifty34 wrote:
You can simply include "%Customer.Username%" token into your "Customer.PasswordRecovery" message template

In addition to adding the token to the password recovery e-mail, I made a couple of additional changes that I think help to clarify that you can recover your password AND username.

1. In the \App_Data\defaultResources.public.nopres.xml file I changed the

This - <LocaleResource Name="PasswordRecovery">
         <Value>Password recovery</Value>

To - <LocaleResource Name="PasswordRecovery">
       <Value>Password and Username recovery</Value>


AND

This - <LocaleResource Name="ForgotPassword">
         <Value>Forgot password?</Value>

To - <LocaleResource Name="ForgotPassword">
       <Value>Forgot password or Username?</Value>