Qrew LegendYes, the native button is definitely whitelisted for the indefinite future so you can trust it. It also has the advantage of the user interface that it makes it easy to land the user on the newly created Parent record.
There is an API method, but it's a little more awkward to use because you don't have an easy way to land the user on the record. What I tend to do in those situations is to create a report filtered by records created by the current user in the last minute and then land the user on that report which will just have one record on it.
So I used the button but I end up with this error while copying:
See here: what are looping relationships | Qrew Discussions
Maybe you enabled recusion. In the field for the copy button, if there is something like &recurse=true change to false or just add &recurse=false to the formula URL.
But don't we want recursion? The added parameter fixed the error issue but now only copies child records (and not children of children, despite the settings I chose when building the button).
