Confirmation in Purchase Order

Hello SAPler. I have here one PO with a few line items.

In line item 1 I get there the expected confirmation status. But in the other line items at the same porder I dont get a confirmation. I have check many things and the settings for the materials at line item 1 and the other seems like same.

The vendor is the other plant from same company.

I checked on the seller side the SO and saw that the other line items where I dont get the acknowledgment, has got at schedule line 2 delivery times. The good will be delivered in the second delivtime. Can that be the reason?