Depending how you get that result back... but basically like that...

I tried that but it didnt work. I am trying to do a lookup on 3 fields like this:

var vra_number = s.lookupFields({
                		type: s.Type.VENDOR_RETURN_​AUTHORIZATION,
                		id: vra_internalid,
                		columns: [
                		          			"entity",
                		          			"trandate",
                		           			"custbody_vendor_bill_num_vra",
                		          		]
                	});

And I extract them like this:

vra_json.vendor   = vra_number.entity;
                	vra_json.date   = vra_number.trandate;
                   	vra_json.vendor_bill   = vra_number.custbody_vendor_bill_num_vra;

Did you try vra_number[0].entity.value?

Yes i tried that but get this error message:

org.mozilla.javascript.EcmaError: TypeError: Cannot read property "entity" from undefined (/SuiteScripts/Vendor Return Authorization/VRA_PrintPDF_button_code_v1.0.js#90)

I am not sure that you get reference the value like an array