Advanced Shipping Method Matrix

Using this section of the shipping rules - you are able to control whether or not a shipping method is applicable:

Trigger by Method - Enable or disable the shipping method it is set for - based on another shipping method being applicable. For example, there are instances where "Standard Overnight" is not applicable to specific addresses and only "Priority Overnight" is. Using this trigger, you can set the method "Priority Overnight" to be disabled if the method "Standard Overnight" is applicable. By doing so, "Priority Overnight" will not show in the results unless "Standard Overnight" failed to quote a rate for the destination address.

Trigger by Origin - Enable or disable the shipping method it is set for - when products from the following a specific origin/postal code are in the cart. For example, when you wish to show "LTL Freight" at checkout only when freight products are in the cart (identified by a specific origin zip/postal code). Using this trigger, you can set the method "LTL Freight" to be enabled only when products from the following origin zip/postal code are in the cart: 90210.
Trigger by Rate (Method) - Enable or disable the shipping method it is set for - when the calculated rate is greater or lower than the rate calculated for another shipping method. For example, if you wish to have "Standard" show only when its calculated rate is greater than "Economy". Using this trigger, you can set the method "Standard" to be enabled when rate is greater than "Economy".

Trigger by Rate (Value) - Enable or disable the shipping method it is set for - when the calculated rate is greater or lower than a certain value. For example, if you wish to have "Standard" show only when its calculated rate is less than $9.99. Using this trigger, you can set the method "Standard" to be enabled when rate is lower than $9.99.
Trigger by Product Tag [Shopify Only] - Enable or disable the shipping method it is set for - when products with a specific tag are in the cart. For example, when you wish to show "Media Mail" at checkout only when specific products are in the cart (identified by a specific product tag). Using this trigger, you can set the method "Media Mail" to be enabled only when products with "media" tag are in the cart.
Trigger by SKUs - Enable or disable the shipping method it is set for - when the products with specific SKUs are in the cart. For example, if you wish to have "Expedited" show only when product SKUs: ABC, XYZ, DEF are in the cart.

Coming Soon:

Trigger by Errors - Enable or disable the shipping method it is set for - when there are no other shipping methods applicable. For example, if you wish to have "Flat Rate Shipping" show only when no other methods returned a rate. Using this trigger, you can set the method "Flat Rate Shipping" to be enabled when there are no other shipping methods applicable.