In the submission message of the Crowdsource Reporter template, it would be great if you could reference the OBJECTID so that users would have a unique reference ID for their submission. That way they have a reference to their submission if they need it at a later stage.
An example use case would be where a local authority wants to give an option for users to submit their contact details. They can't store this in the feature service as it will be public so they want to be able to provide an email address to send on their details if they choose to do so.
Furthermore, if you could reference this in an email hyperlink it would be ideal. Something like this: