Control > Security > Account Import

Use the [_null_] placeholder in Update mode to remove values from the desired fields.

The placeholder is allowed on the following columns:

• ExternalAccountID
• ParentAccountCode
• ParentAccountName
• AssociatedAccountCode
• AssociatedAccountName
• CompanyNumber
• VATNumber
• Notes
• Topics
• AccountType
• Telephone
• Fax
• Email
• Website
• TwitterID
• FacebookPage
• LinkedInPage
• Address1
• Address2
• Address3
• TownCity
• CountyState
• PostcodeZipISOCode
• Country
• PublicName
• PublicTeaser
• PublicDescription
• AccountDirector
• AccountManager
• AccountTeam
• Industry
• CompanySize
• AnnualTurnOver
• Ownership
• AccountEmailDomains