Dear Mr.Mahmoud ElRefaie Omara,
I select all activities in p6 at the same time assign the resource and then export and Put activity id and budgeted unit and imported the excel file.
now it is very fine.. before I was assigning the resource to one activity and for this particular activity amount was coming same but all others showing 8 times more as price/unit=0 for all except the one activity.
Thanks for your support.
Regards,
Muhammad Rehan