This documents describes how the E-WMS 'Back order lines' setting works.
In the E-WMS settings for Sales Order Fulfillment and Receipt Registration, section 'Send to scanner', the setting 'Back order lines' can be enabled or disabled.
This setting determines if 'future' (=back order) order lines are sent 'picking' or not, when sending a sales- or purchase to the hand terminal to be picked. This setting is only applied in the step 'send to HT', not in the advice calculation of Route Optimizing.
Besides this setting, also the date selection in the Control Center determines what lines are sent 'picking'.
These sample scenarios best describe the working of the setting 'Back order lines'.
Unfortunately, this setting was not correctly applied in some E-WMS releases. From product update 399, the setting works as described above.