Have an warning to prevent stock being removed from a sales order after pick note is printed. To ensure the pick note reflects the same changes.

After a pick note is printed and is being picked, the sales order can still be amended and have items removed from the order. This has lead to stock being picked and shipped but not despatched or invoiced as had been removed without the warehouse knowing. An alert to the user who is amending the order, stating that the order is already in pick so so should amend only if the pick is amended. Or something similar to remove the risk. In the mean time we have bespoke showing the pick note status (printed or not printed) but there is still a risk.