Collective PO: Stop automatic distribution during Goods Receipt

Hi all

How to stop automatic distribution during GR? we create collective PO with STO, when GR performed with PO, the DN created for STO atuomaticlly. but we want to use other tcode to create DN, so we need to stop auto DN creation for STO. we have set the configuration as following:

1.SPRO: Logistic General -> Merchandise Distribution -> Site Profiles for Merchandise Distribution

2.SPRO: Materials Management -> Purchasing -> Purchase order -> Set up Stock Transport Order -> Activate Automatic Delivery Creation for PO Type and Shipping Point. inactive the STO type and shipping point.

But it doesn't work, DN still be created automatically. Is there any more configuration need to set?

Thanks!

R.