Imagine adding records in multiple tables via a single form - this is what this form feature can do.
With the support of multiple line items, you can now create powerful forms with line items support (like product forms, order forms, inventory forms, request forms and more).
With this option, you can customize what fields appear in that record creation form popup, making the process simpler and more relevant for your workflow.
And most importantly, the records are added in two different tables via a single form submission.
Some of the form templates are here that have sub-forms (record creation) feature:
Read the detailed sub-forms guide here:
Subform in Forms
What is the Record Creation Sub Form in the Normal Form?
