You can easily allow your members to log in by adding a login link to your navigation menu, or by adding a member login button, or both.
Adding a login link to a site's navigation
1.) Make sure you are logged into your Shopify editor.
2.) Click 'Online Store' in the left side navigation menu:
3.) Click 'Navigation'
4.) Click on 'Main Menu' or alternatively, you may create a new menu:
5.) Click 'Add Menu Item':
5.) Here is the link - just copy this URL and go to the next step:
https://paidmembersapp.com/members/login
6.) Enter any text you want for the 'Name' (e.g. "Login" or Member Login"), then for the next input field section that says 'Link' paste in the link you copied in the previous step, then click 'Add':
7.) Click 'Save Menu':
7.) Now whenever anyone clicks this link you just added, they will see your Login form popup. To test this, you'll need to be on your live website (not the Shopify editor). You can customize many elements of this form in Paid Members App > Membership > Forms.
8.) And when the member logs in, they will see a My Account form popup. To test this, you'll need to be on your live website (not the Shopify editor). By default, the form has a 'Profile' link where a member can log out, see their invoices, cancel etc. This 'Profile' link can be hidden in Paid Members App > Membership > Forms.