| Value | Description |
|---|---|
NON_SCHEMA | Resolved at send time from the store or customer, not from the trigger payload. |
RENDERER | Filled by the email renderer for every send (unsubscribe and view-in-browser links). |
TRIGGER | A field on this trigger’s schema. |
EmailTemplateVariableSource
Where a template variable comes from. Trigger fields come from the template’s schema; renderer names are filled for every email; non-schema names resolve from the store or customer at send time.