Step 1: To get the link to the Sign-up Page, from the Admin Dashboard click on "Configure Sign Up Page".

Step 2: On the following page, click the link "View Sign Up Page".

Step 3: You get the Sign-Up Page where you can copy the link from the Address Bar at the top.

Step 4: Go to your Square online account and log in. Go to the website by clicking it. Select Edit Site from the Website menu. 

Step 5. Under the homepage, click on the header to access the home page.

Step 7. Select Navigation and Navigation Links from the drop-down menu. You can add a navigation link to your website where you can include your affiliate link.

Select External Link from the Link drop-down menu, and then paste the link to your sign-up page. After that, you can name it Affiliate Program and save it.

Step 8. To make the modifications, you can publish your site. If you click on the affiliate program, it will take you to your sign-up page, as you'll see.