POSC outbound no automatic WT creation

Hi Experts,

I have some questions regarding the configuration of outbound POSC if anyone can kindly throw some light.

Outbound POSC is determined by WOCR, I have done the following but still only one WT was created:

1. Configured storage control OUT1 with step(Pick, Pack, Stage, Load)

2. Assign the storage process to WOCR for the activity areas where each process step taken place.

Could anyone throw some light on what logic have I be missing? I supposed the above storage process will create 3 WT?

I really appreciate for the help.

Best,

Eddie