Context
Please note that by default only orders less than 14 days old are displayed in the bpost tab. After 14 days, the orders will not be visible anymore!
How can I change it ?
It's possible to modify the number of day an order stays visible by modifying in the plug-in itself the constant 'DEF_ORDER_BPOST_DAYS' which is located in the following file:
bpostshm/controllers/admin/AdminOrdersBpost.php or bpostshm/bpostshm.php (following your plugin version)