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It may be necessary to clear values in a system field. For example, perhaps you're running a direct mail campaign but you don't have email addresses for your audience. At the time of this document, it's not possible to upload contacts into Lead Liaison without an email address. In this case, upload contacts with the physical mailing address and use a dummy email address, such as "dummy@dummy.com", into your contact list. Once the contacts are in the system run an Automation Workflow to clear out the email addresses. Once the data has been cleansed, execute your direct mail campaign. The example below demonstrates how to set this up. 

Example (Wiping Email Addresses)

Follow these steps to upload contacts into the system who do not have an email address. 

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