Activity Forums Salesforce® Discussions What is an external ID in Salesforce? Which all field data types can be used as external IDs? Reply To: What is an external ID in Salesforce? Which all field data types can be used as external IDs?

  • Ratnakar

    Member
    March 14, 2018 at 2:32 pm

    Hi kapil,

    An external ID is a custom field that has the External ID attribute, meaning that it contains unique record identifiers from a system outside of Salesforce. External ID uniquely Identify a record outside of salesforce. We use external id when we are integrating salesforce with an external application.