Sendcloud is designed for easy creation of transport order from your sales order. For direct booking of the transportorder in sendcloud setup Shipping Rules for the unstamped letter
With limitation you can use the sendcloud together with the posted document settings. This means you have to do a carrier selection in the transportorder for the required service. After the carrier selection is completed the booking can proceed.
When working with Apply Shipping Rules set the following described in chapter Shipping Rules
Basic steps to perform when working with the apply shipping rules
Create sales order
Enter customer (with default unstamped letter)
Enter requested delivery date
Enter the items
Post the shipment
If al address information is correct you will have a booked transport order
Open the posted sales shipment
Click the booked transport order no. in the factbox to open the related transport order.