Add functionality to lookup lists on different sites in Classic forms in the Lookup control
The O365 version of the classic form does not allow you to lookup lists on different sites. This is very restrictive
It's sad that Nintex has chosen to only develop features for modern forms. For thousands of organizations who are migrating to SPO, they would first migrate to classic form and then convert from there. I am not sure what Nintex's leadership is thinking. Many of us have been talking about moving away from Nintex to Power Platform that Microsoft offers.
This is most definitely a needed feature.