Retrieving package dimensions from an item record (client script)

Hello,

I am trying to get package dimensions from an item record from a client script. Presently I have some code that accesses inventoryitem using nlapiLoadRecord.

Following

https://system.netsuite.com/help/helpcenter/en_US/RecordsBrowser/2013_2/Records/inventoryitem.html


I've attempted to get access to the package data. Using

itemRecord.getFieldValue('shippackage');

Results in it returning "1". I'm assuming this is the line number corresponding to the package in the shipping setup.

If I alert the following:

alert('Dims = ' + itemRecord.getFieldValue('packagelength') + ' x ' + itemRecord.getFieldValue('packagewidth') + ' x ' + itemRecord.getFieldValue('packageheight'));

I get "null x null x null". I know for a fact this package I have this item set up with has dimensions.