Activity › Forums › Salesforce® Discussions › For which data type we can enable external in Salesforce? Tagged: Data Type, External Data Source, External ID, Salesforce Customization, Salesforce Development Salesforce® Discussions For which data type we can enable external in Salesforce? Posted by Manpreet on May 10, 2017 at 12:23 PM For which data type we can enable external id? Suraj replied 9 years ago 2 Members · 1 Reply Data TypeExternal Data SourceExternal IDSalesforce CustomizationSalesforce Development 1 Reply Suraj Member May 11, 2017 at 1:37 PM Hi Manpreet, External Id only Support following Datatypes Number Text Email Log In to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me