Thanks for checking this with the Community. I want to ensure you get the answers you need on setting up payments link on social media.
Before we proceed, please know that QuickBooks Online (QBO) only offers an invoicing feature, called QuickBooks Payments, where customers pay by credit card, Apple Pay, or free bank transfer—right in their online invoices.
However, since you're trying to set up a payment link on social media, this requires developers' expertise to get help with the preference. I'd recommend posting this concern to our Intuit Developer Forum to get assistance from one of the experts handling software integrations.