Unable to bring the cursor focus to Expiration date in Mobile Shipment receipt page

Hi ,

we have requirement to validate the expirat date in Mobile Shipment receipt page. We have done the below approach

1. While entering the lot number in Int Ship( Mobile Shipment Receip page) , it is going to Lot Attribute page.

2. There is an exit button in lot attribute page and while leaving from attribute page we are enabling the expiration date and clearing values.

Issues:

lot Expiration date was enable and cursor is going to the next field lot quantity. We need the cursor to be at expiration date so that user can scan the new date.

we are trying to resolve this issue since 4-5 days but not able to resolve the same. Would appreciate if anybody can suggest some quick work around.