This plugin adds a new type of select box to ACF. The plugin provides an input for an endpoint from which the necessary options to populate the select are retrieved. It provides API authentication via username and password for the connection between WordPress and the magento API. There is validation about whether the entered string is a valid url, as well as whether the response is in valid JSON. After successful retrieval of the options a select box gets populated, from which the desired default option for the resulting select can be set.