You can send an automated email to a prospect after they fill out a form using either an automation rule or a completion action. An automation rule is a criteria-based action that is triggered when a prospect matches the rule. You can use an automation rule to send an email to prospects who fill out a specific form or any form. A completion action is a task that is performed after a prospect successfully completes a marketing element. You can use a completion action to send an email to prospects who fill out a particular form. You cannot use a segmentation rule to send an email, since segmentation rules are used to segment prospects into lists or update their field values. Reference: [Automation Rules], Completion Actions, [Segmentation Rules]

The best way to design an engagement program focused on providing exclusive offers and content to re-engage prospects is to create a dynamic list and add it as the recipient list to an engagement program. A dynamic list is a list that automatically populates with prospects who match the criteria you set. An engagement program is a program that allows you to send automated emails to prospects based on their behavior and preferences. LenoxSoft can create a dynamic list that matches prospects who have not been active on their website for more than 180 days, and add it as the recipient list to an engagement program that leads re-engaged prospects to a promotional offer.

Users can be imported into Marketing Cloud Account Engagement from a CSV file or from Salesforce3. You can also manually add users individually or in bulk3. Importing users can help you save time and ensure consistency in your user management3

The recommended way to create this type of list is to use an automation rule where prospects who complete the form will match the rule once and be added to the list. An automation rule is a rule that runs continuously in the background and matches prospects based on the criteria you set. You can use an automation rule to perform actions on the matched prospects, such as adding them to a list, assigning them to a user, or changing their field values. However, an automation rule can only match a prospect once in its lifetime, even if the prospect meets the criteria again later. This prevents duplicate or conflicting actions from being applied to the same prospect3. Therefore, an automation rule is ideal for creating a list of prospects who complete the Contact Us form but only want them to be added the first time they complete the form. If a prospect is ever removed from the list, they will not be able to get added back to it, because they will not match the automation rule again.

Marketing Cloud Account Engagement syncs with Salesforce every 10 minutes. Marketing Cloud Account Engagement and Salesforce work together to keep data aligned between the two platforms. Some of the data that syncs bi-directionally are leads, contacts, and campaigns. Some of the data that syncs one-directionally from Salesforce to Marketing Cloud Account Engagement are accounts, opportunities, and tasks. Marketing Cloud Account Engagement syncs with Salesforce every 10 minutes by default, but you can also trigger a sync manually or by certain actions. For example, you can sync a prospect from their record in Marketing Cloud Account Engagement or Salesforce, or you can sync a group of prospects by using automation rules, segmentation rules, or imports. You can also sync a prospect by changing their Marketing Cloud Account Engagement campaign, assigned user, or email opt-out status. You can view the sync status and history on the prospect record in Marketing Cloud Account Engagement or Salesforce. For more details -> 18192021