Upgrading From Reckon NZ / AU 2019 PREMIER - What are the options

We have hit a 40,000 record limit in the multi-user version of QB premier Manufacturing and Wholesale 2019.

We also need an API ability to integrate the inventory with our website (stock-codes, inventory level, invoices)

Help !: what is our upgrade path from QB2019 Premier NZ? Do we Dump Quickbooks entirely? can we get a version that allows more records 40,000? Do we use a different inventory such as unleashed and export invoices to QB?