hi , we have automated for uk based lighting business. i have left working for them. however have source code of it. i have also posted the pseudocode in the below post Fulfillment Workbench - #8 by prakash
should you need any further assistance/buy the full source code, feel free to reach me out. also, if you started customizing and stuck at somepoint, post the code here and i will attempt to help you out. @Ricky90