I'm fairly new to dataverse, but I'm struggling in situations where I need to use date from child records (one2many).
For example, if I have a Customer table and an Invoice table, where I want to display the total number of Invoices on the Customer form.
The options I am aware of are Rollup fields (which only update on a set timer) and Flows (which seem overly complex for the requirement).
I'm wondering if there are simpler alternatives to achieving this.
I did notice that in Sales Professional app, there is a Total Amount field that seems along the lines of what I need, but havnt been able to figure out how it works.