Error while creating the delivery for STO

Hi,

While creating the delivery, an error is produced when i saw the log . It was as follows

"An Item with no delivery quantity is not permitted. Item will be deleted"

Its related to STO,. if STO contains around 100 items and error is for any single item system is not able to create the delivery for whole PO.

Please guide as its an vey urgent issue will reward with suitable points.

Regards,

Vikram