Generate delivery Items for packaging materials in a WM HU managed sloc

Dear Experts,

Need an advice. I need to generate packaging material as a delivery items in a WM HU managed storage location. I have gone through the below SAP KBAs.

2323180 - Delivery items for packaging materials of picking unit

831204 - Delivery items for packaging materials

Also gone through the below link

https://wiki.scn.sap.com/wiki/display/ERPSCM/Generation+of+Delivery+Items+for+Packaging+Materials

My requirement is that when I create delivery, the packaging materials should be consumed at time of PGI.

I tried and tested the above scenario, it works fine in HU managed location when I pack the delivery in a Handling unit, the packaging materials becomes relevant for delivery. However, in a HU WM managed sloc, I need to conduct picking first with LT03 and latter pack the required HU during TO confirmation, but still I am not getting the packaging material relevant for delivery.

I am doing below process.

1) Sales order----> Outbound delivery---->PickingLT03-----> TO confirmation LT12.

I am following the highlighted route to derive this but still its failing in HU WM Sloc.

Appreciate your reply.

Best Regards

Shailesh Mishra