I received a support inquiry about how to add an autoresponder to a Salesforce submission. While Salesforce’s REST API doesn’t directly allow triggering an autoresponder, Salesforce’s knowledge base has documented a way to accomplish the desired end result.
The solution is to “create a workflow rule that would fire on Lead/Case creation that would send an email to the correct address“. The solution mentioned answers a specific question regarding Lead and Case creation but you may be able to create the work flow for any object. If you do try it with a different object, I’d love to hear about it so I can share the experience with other Ninja Forms Salesforce users.
If you’d like to read the details, here is a link to the full knowledge article:
https://help.salesforce.com/articleView?id=000212166&type=1