try {
var cidfil = [];
cidfil[0] = new nlobjSearchFilter('custrecord_pss_cpp_carrier', null, 'is', carrierId);
cidfil[1] = new nlobjSearchFilter('custrecord_pss_cpp_shiprec', null, 'is', '@NONE@');
var cidcol = [];
cidcol[0] = new nlobjSearchColumn('custrecord_pss_cpp_pronum', null, 'min');
var cidsearch = nlapiSearchRecord('customrecord_pss_carrier_pronumbers', null, cidfil, cidcol);
for (var y = 0; y < cidsearch.length; y++) {
var resPro = cidsearch[y].getValue('custrecord_pss_cpp_pronum_min');
}
return resPro
} catch (nlobjError){
if (nlobjError.name === 'SSS_INVALID_SRCH_OPERATOR'){
var resPro = 'ProNum not on file';
return resPro
}
}