WMS --> Bulk Picking --> No Tasks Available

Hi,

Need help on using Bulk Picking method on Mobile device to WMS module
I getting 'No Task Available' when I select the Option

Procedure
----------
1) Create 2 Sales Orders
2) Pick Release and review th Move Pick Slip report
3) Switch to Mobile device
4) Select 5 Tasks,
5) 1 Directed Tasks
6) 2 Outbound
7) 7 Bulk Picking
8) Enter Org code
9) Press Enter for Equip, Fron Sub, and Device
10) System returns 'No Task Available'

Any help??