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

In Pardot (Salesforce Marketing Cloud Account Engagement), when setting up form fields, there is an option specifically designed to maintain the initial value of a field that a prospect enters, even if they submit different values in the same field on subsequent forms. This is critical for maintaining consistent data when the first submitted value is of primary importance, such as capturing the original source of a lead. This setting ensures that the field value doesn't update with each new submission, thus preserving the original data.

When using completion actions for list emails, you should keep in mind that completion actions based on email link clicks only execute once per prospect, and completion actions based on email opens will retroactively apply if added after the email send. These are important considerations because they affect how your completion actions will work and what results you will see. For example, if you want to add a prospect to a list based on a link click, you should know that the completion action will only fire the first time the prospect clicks the link, not every time. Similarly, if you want to change a prospect's score based on an email open, you should know that the completion action will apply to all prospects who opened the email, even if they opened it before you added the completion action