# isUnlabelledFallback

This can be marked 'true' to indicate that some published [DeliveryTimeSettings](https://schema.org.ai/DeliveryTimeSettings) or [ShippingRateSettings](https://schema.org.ai/ShippingRateSettings) are intended to apply to all [OfferShippingDetails](https://schema.org.ai/OfferShippingDetails) published by the same merchant, when referenced by a [shippingSettingsLink](https://schema.org.ai/shippingSettingsLink) in those settings. It is not meaningful to use a 'true' value for this property alongside a transitTimeLabel (for [DeliveryTimeSettings](https://schema.org.ai/DeliveryTimeSettings)) or shippingLabel (for [ShippingRateSettings](https://schema.org.ai/ShippingRateSettings)), since this property is for use with unlabelled settings.

## Expected Types

| Type | Description |
|------|-------------|
| [Boolean](https://schema.org.ai/Boolean) | Boolean: True or False. |

## Used on Types

| Type | Description |
|------|-------------|
| [DeliveryTimeSettings](https://schema.org.ai/DeliveryTimeSettings) | A DeliveryTimeSettings represents re-usable pieces of shipping information, relating to timing. It is designed for publication on an URL that may be referenced via the [shippingSettingsLink](https://schema.org.ai/shippingSettingsLink) property of an [OfferShippingDetails](https://schema.org.ai/OfferShippingDetails). Several occurrences can be published, distinguished (and identified/referenced) by their different values for [transitTimeLabel](https://schema.org.ai/transitTimeLabel). |
| [ShippingRateSettings](https://schema.org.ai/ShippingRateSettings) | A ShippingRateSettings represents re-usable pieces of shipping information. It is designed for publication on an URL that may be referenced via the [shippingSettingsLink](https://schema.org.ai/shippingSettingsLink) property of an [OfferShippingDetails](https://schema.org.ai/OfferShippingDetails). Several occurrences can be published, distinguished and matched (i.e. identified/referenced) by their different values for [shippingLabel](https://schema.org.ai/shippingLabel). |

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Quoted from Schema.org 30.1, https://schema.org/isUnlabelledFallback, under CC BY-SA 3.0. Served by the Org.AI Foundation at https://schema.org.ai/isUnlabelledFallback.