Magento 2.3 - Add shipping carrier in dropdown to ship order

Question

I want to add a new carrier to the dropdown menu inside the shipment tab of a order, to select a custom carrier.

I already tried this https://devdocs.magento.com/guides/v2.3/howdoi/checkout/checkout-add-custom-carrier.html but that is adding a custom shipping method in the checkout, not to select a carrier inside a order.

How can I achieve that?

Answer 1

In your carrier model, you need to add the function to enable this shipping method to appear in the backend when your tracking information becomes available.

/**
     * Check if carrier has shipping tracking option available
     *
     * All \Magento\Usa carriers have shipping tracking option available
     *
     * @return boolean
     */
    public function isTrackingAvailable()
    {
        return true;
    }

However, you also want to hide the carrier in the checkout, to do this,

/**
     * @inheritDoc
     */
    public function collectRates(RateRequest $request)
    {
        return false;
    }

see an example of carrier behaving like you describe at: https://bitbucket.org/magstaging/carrier/src/master/