The Good Enough Consultant

What’s an Indexed Field?

Salesforce categorizes fields as either indexed or non-indexed, with indexed fields offering faster query execution. System‑generated fields such as lookups, master‑detail relationships, audit dates, and RecordTypeId are indexed automatically. Administrators can manually index custom fields by marking them as External Id or Unique, or by requesting an index from Salesforce support. Formula fields, however, are never eligible for indexing, so they remain non‑indexed regardless of usage.