Activity › Forums › Salesforce® Discussions › What is an External ID in Salesforce?

  • Anjali

    Member
    August 19, 2020 at 8:25 am

    External ID are used when we interacting with a external systems. It will act as unique identifier. We can define 3 external ID fields per object. These are the data types of fields.

    • Number.
    • Text.
    • Email.

  • Anuj

    Member
    August 19, 2020 at 5:13 pm

    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. When you select this option, the Data Import Wizard detects existing records in Salesforce with external IDs that match those values in the import file.

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