The QUID Payments plugin for WordPress supports two modes of accepting payments on your WordPress site: required or optional.

Payment required

Why you would use it

You want to charge your site's visitors before they can access the full blog post content.

How it works

When you configure the QUID payment settings for a blog post and you specify that a payment is required, then the plugin will cause WordPress to display only the excerpt of the blog post anywhere that the post content is accessible (i.e. on your main blog page or on the page for that specific post).

When a user pays for access to a blog post, the plugin will replace the excerpt of the blog post with the full content of the post. Your WordPress site will also create a database record of that visitor's payment for the particular post so that they will be able to access the post when they return to your site.

If a visitor returns to your site and is logged in to their QUID user account, the full blog post content for any blog posts they have already paid for will automatically be shown. If the visitor is not logged in to their QUID user account, they will see a "Restore Purchase" button beside the QUID payment button. To restore purchases, a $0 QUID payment will be made after which previously purchased content will be displayed to the visitor.

Payment optional

Why you would use it

You want to ask your site's visitors for payment but will still let them access your content without paying.

How it works

When you configure the QUID payment settings for a blog post and you specify that a payment is optional, then the plugin will allow WordPress to display the full blog post content anywhere that the post content is accessible (i.e. on your main blog page or on the page for that specific post).

When a user chooses to pay for access to a blog post, they will briefly see a thank you message and then the payment button will be hidden from that page. Your WordPress site will not track optional payments, so every time a visitor loads or reloads a post with an optional payment setting they will see the payment button. Also, if you change the setting from Optional to Required then visitors that have previously made an optional payment will need to make an additional payment before accessing that content again.

Some additional information

To make a payment, the visitor to your site will need to have a QUID user account, which can be created in the QUID payment window without leaving your site.

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