A Shipping Method Tax Rate can be set if the Cart has the External TaxMode.

interface CartSetShippingMethodTaxRateAction {
    action: "setShippingMethodTaxRate";
    externalTaxRate?: ExternalTaxRateDraft;
}

Properties

action: "setShippingMethodTaxRate"
externalTaxRate?: ExternalTaxRateDraft

Value to set. If empty, any existing value is removed.

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