AutoEntry gives you the ability to mark invoices as paid.
For Sage 50 Accounts UKI specifically, it's only possible to mark invoices as fully paid (not part-paid).
The resulting transactions in Sage 50 UK&I will be:
A Purchase Invoice (as normal - DR Expense/Liability, CR Accounts Payable)
A Purchase Payment for that same Purchase Invoice (DR Accounts Payable, CR Payment Account).
📎NOTE: This feature is only available for Purchase invoices and not for Sales invoices. This means sales invoices will always post as " Pay later" in Sage 50 when syncing from AutoEntry. You’ll need to manage the invoice payments from Sage 50.