IC:creating order through SAVE button does not save schedule line until press END

Hi Expert,

While creating order form Interaction centre when user press SAVE button order gets createdbut again user do any changes and try to save the order the order ends with warning message as schedule line information gets removed zero. the docuement have distribution lock too.

Incase user press END button just after save there is no issue

How can we overcome this issue. Incase the interface workign as per design then why this is made so. Please anyone brief this.

Incase SAP has provided any SAP note to solve this issue please let me know.Its an issue with the interface

Thanks,

Prem