The resource Magento_Sales::order that was used isn't a valid
resource which results in the connection to that route
(/V1/mailplus/orders) to be refused. The correct resource is
Magento_Sales::sales which is also used for the "normal" routes
regarding the orders.
The resource
Magento_Sales::order
that was used isn't a valid resource which results in the connection to that route (/V1/mailplus/orders) to be refused. The correct resource isMagento_Sales::sales
which is also used for the "normal" routes regarding the orders.