What happens when a field is required?

You might notice a star (*) next to certain fields when working with field mappings in Salesforce. This star indicates that Salesforce requires the field to contain a value for a record to be created. If a required field is left empty during this process, Salesforce will not allow the operation to be completed i.e. the record will not be created.

To help, we will automatically set the Last Name field to Not Provided to ensure the record can be created without errors. This approach helps maintain the integrity of the data while allowing the process to continue smoothly.

You can set a default value if you have other fields or want to use something different. By setting your defaults, you can ensure that the data aligns more closely with your business requirements while complying with Salesforce’s mandatory field requirements.

Default values can be set directly on our field mappings screen in Salesforce.  You can also create default values directly in Mailchimp - https://mailchimp.com/help/set-default-merge-values/