Netsuite nlapiSearchRecord Expression filters not working

Question

Running into an issue with the nlapiSearchRecord() I can apply the nlobjSearchFilter() object to the searchRecord but I need an OR option and it seems that the only thing the searchFilter passes is AND. I saw this post "NetSuite And/Or Filter" which gave me the the correct information but I keep getting the following error.

Title SSS_INVALID_SRCH_FILTER_EXPR_OBJ_TYPE
Type System
Details filters

and I am not sure why, I tried to do a search for the Error title "SSS_INVAILD_SRCH_FILTER_EXPR_OBJ_TYPE" but google did not produce any helpful information.

Here is the Expression Code I am running

filterExpr = [
                    ['internalid',null,'is',itemId],
                    'AND',
                    [
                        ['inventorylocation',null,'is',locationId],
                        'OR',
                        ['inventorylocation',null,'is',3]
                    ]

                ];

var results = nlapiSearchRecord('item',null,filterExpr,columns);

--- SOLVED ---

Figured it out the issue was with the null I had in the filter it should have been written as such.

filterExpr = [
                    ['internalid','is',itemId],
                    'AND',
                    [
                        ['inventorylocation','is',locationId],
                        'OR',
                        ['inventorylocation','is',3]
                    ]

                ];

var results = nlapiSearchRecord('item',null,filterExpr,columns);

Thanks in advance for the help.

Answer 1

The filter did not need the null option that I was putting in my bad for not fully reviewing the format.

--- SOLVED ---

Figured it out the issue was with the null I had in the filter it should have been written as such.

filterExpr = [
    ['internalid', 'is', itemId],
    'AND', [
        ['inventorylocation', 'is', locationId],
        'OR', ['inventorylocation', 'is', 3]
    ]
];

var results = nlapiSearchRecord('item', null, filterExpr, columns);