Hi @sakshigoel1722
I hope you’re well today!
Depending on that external API you can either use a built-in “webook” integration or a custom code.
If your target API supports webhooks, you can setup webhook integration in Forminator as explained here:
https://wpmudev.com/docs/wpmu-dev-plugins/forminator/#webhook
If it doesn’t support webhooks, you would need a custom code. This code can be used to do such submission (it can be used to submit to external API or some other form on 3rd-party website):
https://gist.github.com/adczk/a314ad50036ffd449147d28f2e876e2b
Please see comments in code for details on how to configure and use it and if you have any follow-up questions, let us know here.
Best regards,
Adam