if (type=='item'){ var subRecord = nlapiViewLine...
# suitescript
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if (type=='item'){ var subRecord = nlapiViewLineItemSubrecord('item', 'inventorydetail',1); //view inventory details var lotnumber = subRecord.nlapiGetCurrentLineItemValue('inventoryassignment','issueinventorynumber'); //get lot number var expdate = subRecord.nlapiGetCurrentLineItemValue('inventoryassignment','expirationdate'); //get expiration date