Gross Weight Invalid on Putaway confirmation with License Plate

Hello,

I am having three different  items under License Plate and all are having the gross weight under P46011. The Gross weight of License plate is also properly calculated in F46L11 table.

AT the time of Putaway confirmation P4617 , getting hard error as "

Cause:

Either the Gross Weight in Work with U/M Definition by Item (P46011) for the transaction item's primary unit of measure is blank or there exists no standard unit of measure conversion between the item's primary unit of measure and the license plate weight unit of measure on which the item resides.

Resolution:

Enter either the Gross Weight in Work with U/M Definition by Item (P46011) for the transaction item's primary unit of measure or a standard unit of measure conversion between the item's primary unit of measure and the license plate weight unit of measure on which the item resides.