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How to update item's custom field using suitescript.

Do you need to update the value in a custom field on all item-records?

yes bro exactly this is what i want but i want to do with suitescript.

Ok, your options are a map/reduce, scheduled or mass update script.

Read up on it here: <https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4460452911.html>

let me share with you something

`define(`
    [
        'N/search',
        'N/record',
        'N/cache',
        'N/format',
        'N/https'
    ],
    function (search, record, cache, fmt, http) {

        function updateRecord(context) {
            try {
                const id = context.recordId;
                const type = context.type;
                const values = context.values;
                const options = context.options;

                return JSON.stringify(record.submitFields({
                    id: id,
                    type: type,
                    values: values,
                    options: options || {}
                }));
            } catch (err) {

                log.debug({
                    title: 'PUT',
                    details: JSON.stringify(err)
                });
                return JSON.stringify(err);
            }
        }
        return { post: updateRecord };
    });

I'm not skilled enough to just be able to say that it works... but it looks like it could work.