If you do not see the "Submit and Email App" button from the MCA Application page before you submit (picture below), it is due to the following reasons:
1. An MCA Application template still needs to be uploaded to the Admin > Set Up > Templates page, Document Merge section.
2. This application template must be in PDF FORMAT.
Refer to this video for how to use send a merged application directly to your merchant from this page.
You can also send a merged MCA Application once your deal is created. From the Deal > Application page, click the EMAIL APPLICATION button to initiate the email application and merge feature. If you do not see this button, it is for the same reasons listed above.