VL10D Not able to create a delivery

Hi Gurus,

I have created a PO ( Intercompany PO ) for 1 piece

In supplying plant stock is available.

In MD04 I checked the corresponding entry is there for the PO line item still I am not able to open a delivery against the PO.

Further I had checked in the Cust tab for the Material the material is not blocked for Sales Order and neither any PGI is due for any other delivery.

Any clue why this is happening.

Best Regards

Ankur