Learn about Child Objects in Salesforce Push Payment
When you deal with integration, push integration may contain several lines. These lines act as child objects. Each of these lines is treated as a single one but represented as a hierarchy.
The best part is that you can execute a payment in forms having payment integration option. In this case, you can push data to salesforce and child objects after the payment has been executed.
To clarify the concept and learn more about child objects, proceed to this tutorial on FormTitan support blog. Also, you should watch this video for more information on the subject.