Sending Customers a "Pre-Populated" URL Link For Placing Orders/Requests

Thanks. To give you a background: The order/valet page itself can be a generic page where customers can place orders/valet requests from one of our partners (registered users/businesses). I am trying to create a process wherein a partner can send their customer a to this page on our website (for them to place an order/request) …the same way a “referral” program would work. Therefore, I need a way to link the customer to the particular partner (who sent them the URL to the order/request page). Using a slug in the URL was my attempt to connect the partner to the URL (with the hope that I could dynamically extract the slug from the URL into a hidden field on the form. Then I could use the slug field or URL path to connect the customer’s order/request to the particular partner). I am not sure if this would work or if there’s better way to do this, but I was just trying to figure it out.

With regards to the bubble built-in link feature, I’m curious to know if I will be able to connect the customer and their order back to the user/partner who sent them the link. For instance, I need certain fields on the order page (e.g., addresses) already populated with the user/partner information, when the customer gets to the form. The customer is literally only adding payment/credit card information and submitting the form.