How do I update the contents of a matrix cell?

Hi,

When a user exits the quantity column on the Sales Order matrix, a value in a user defined field is checked, and if this is a cetain value, I need to update the value in the quantity cell on that particular row.

How do I update the value of this cell? Is the column not editable as I am trapping the event on the et_LOST_FOCUS event of the column?

Here is the line of code I would expect to do it...

oMatrix.Columns(35).Cells.Item(pVal.Row).Specific.Value = iPackingUnit

Thanks for any help,

Robin