I am not being able to set a Auto-number field as an external Id. I read in a lot of documents that it can be done

  • Yes its possible. You have a checkbox 'External Id' when you edit an auto number. Jan 20, 2017 at 7:44
  • I kept thinking it can be done during object creation. Thanks
    – Rimii
    Jan 20, 2017 at 9:30

1 Answer 1


When you create a new Auto number field you get an option to make this field an External field.

You need to check that checkbox.

Auto Number Field

  • 1
    Thanks, I kept thinking it can b done during the object creation.
    – Rimii
    Jan 20, 2017 at 9:29

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .