var salesOrderSearch = search.create({
   type: search.Type.SALES_ORDER,
   columns: [
      {name: 'internalid'}
   ],
   filters: [
      ['otherrefnum', <http://search.Operator.IS|search.Operator.IS>, PURCHASE_ORDER_TRANSACTION_ID]
   ]
});

I have this super simple search here in code that looks for Sales Orders that have the otherrefnum of what I am specifying (PURCHASE_ORDER_TRANSACTION_ID). No matter what the value of PURCHASE_ORDER_TRANSACTION_ID is, it always returns the exact same Sales Order which definitely does not have the same value. Its as if the filter isn't working but its a text field so this should have no issues....is there just something stupid I am not seeing?

otherrefnum corresponds to the PO/Check Number which is a number in the ui

maybe try search.Operator.EQUALTO because.. reasons?

use poastext (which is PO/Check ID) if you want to treat it as text

im looking at all of their sales orders now and they have text ill try equal to though

fields and filters are not the same thing

equalto fixed it...i feel stupid now lol

if it helps i had zero justification for suggesting it (other than NS being netsuite )

it def worked... i just failed today...it happens. Im not sure why equalto wasnt even popping up in my brain

I thought I read somewhere that EQUALTO was for strings or not?

help doc has a table of which operators work with data types and is works with strings according to that

I would normally try creating the saved search equivalent in UI to see what is happening.