Hi SS,
You have a Requested delivery date at header level.. (of course this is not what you see in MD04). You can see this in VA03 at the top of the screen and you can find this in table VBAK (field VDATU).
Now if you want to see what you have in MD04, that is what is important for a planned, then check table VBEP and VBBE.
Kind Regards,
Mariano