WMS Label for Subinventory transfer

hello friends,

I was wondering to check the setups to get a label for SI transfer transaction in a WMS environment.

I did set the following but still not able to get a label:

1- created a label SI.lwl and assign it to label format under LPN content label type

2- Attached the LPN content to SI business flow

3- Created a WMS Label rule and attached SI.lwl for return value.

Tried the SI transfer and it didn't create any label history. It is a LPN transfer through mobile scanner .