Any string surgery HubSpot operators cannot do: regex, lookups, multi-step logic.
Form submissions arrive as a single name field, addresses come in whatever shape the visitor typed, and HubSpot's operators cannot express the rules needed to tidy them reliably.
Run Custom Code handles the awkward cases properly, such as titles and surname particles, and the library ships a tested snippet you can clone rather than writing it yourself.
Enroll on create, run Phone: Normalize with your country code, write the result back.
Capitalize names, lowercase emails, trim stray whitespace as records enter the CRM.
Email domain matching with create-if-missing keeps new signups organized without manual triage.
Install AuPerate once and every action appears in your HubSpot workflow editor.
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