I meant to say - please let your business partner know and check it out before installing!

It needs packaging as an add-on using the SDBX packager (a business partner/developer tool), then needs installing in System Administrator / Add-ons (Simple mode). Help screen here.

I've put a packaged version here

Sorry for the confusion - it is Sage 200 Professional that we have.  Is there somewhere which gives straightforward instructions on how to add script?  I have never done this before

That's odd as I didn't think Sage 200 Standard could be amended!

In Sage200 Professional, you'd add this script (Sage.MMS.POP.ConfirmGoodsReceivedForm.vbs)

Imports Sage.ObjectStore.Controls
Imports System
Module addInModule
Sub Main
        CType(form.FindControlByName("grid").UnderlyingControl, Grid).Columns.Insert(6,New GridColumn With {.Caption = "Description", .DisplayMember = "ItemDescription", .Autosize=True})
End Sub
End Module

I had asked the same thing just a couple of weeks ago and was advised that it would have to be carried out by the development team at cost of 1.5 days plus annual support charge.  I am aware that you can click down each part and the item description be shown individually but want it showing alongside each part number to make it easy for stores staff to check and book in orders