How do I remove the 'click on the link to pay this invoice' which has suddenly started to appear at the bottom of my sales invoices?

Hi @Sarloubra. Are you using QuickBooks Payments or PayPal? Once either one is connected to QuickBooks Online (QBO), your customer will see a "Pay Invoice" link when they receive the invoice.
 

To keep this from showing, follow these steps:
 

  1. For PayPal: Go to the integrations page and disconnect it.


 

  2. For QuickBooks Payments: Turn it off in your invoice settings.

Let us know if you have further questions or concern.