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is it possible via script to unbuild assembly ( using map/reduce)

i should have made my question clear , where is the  docs for assembly unbuild

<https://system.na0.netsuite.com/app/help/helpcenter.nl?fid=chapter_N3170023.html|SuiteScript Supported Records>

thanks <@U5TF1GQ20>   which fields are required  i should follow the list in records browser ?
```    var assembly = record.create({
          type: record.Type.ASSEMBLY_UNBUILD,
      });
      assembly.setValue({ fieldId: "subsidiary", value: 2 });
      assembly.setValue({ fieldId: "item", value: data.id }); 
      assembly.setValue({ fieldId: "location", value:"14" });
      assembly.setValue({ fieldId: "quantity", value: data.qty });

      assembly.setSublistValue({
          sublistId: "component",
          fieldId: quantity,
          line: 0,
          value: qty
      });
      var subList = assembly.getSublistSubrecord({
          sublistId: "component",
          fieldId: "componentinventorydetai",
          line: 0,
      });
      subList.setSublistValue({
          sublistId: "inventoryassignment",
          fieldId: "quantity",
          line: 0,
          value: qtysubmit,
      });
      subList.setSublistValue({
          sublistId: "inventoryassignment",
          fieldId: "issueinventorynumber",
          line: 0,
          value: lotNumber,
      });```

the inv detail on line item of a transfer order  since it is a line item for unbuilding assembly there are two diffrent inv details needed  the main and item what would the main syntax be ?
```          var subList = ifRec.getSublistSubrecord({
              sublistId: "item",
              fieldId: "inventorydetail",
              line: i,
            });```

basics for working with records is to learn how to create the record in the ui, then set those same fields you used in the ui in script

<https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4296709996.html|Record.getSubrecord> is used to access body level subrecords

thank you <@U5TF1GQ20> im try to set the lot number for the copmonent
```var subList = assembly.getSublistSubrecord({
      sublistId: "component",
      fieldId: "componentinventorydetail",
      line: 0,
    });
    subList.setSublistValue({
      sublistId: "inventoryassignment",
      fieldId: "quantity",
      line: 0,
      value: lotqty,
    });
    subList.setSublistValue({
      sublistId: "inventoryassignment",
      fieldId: "issueinventorynumber",
      line: 0,
      value: "lot",
    });```

Take a look here, I haven't tried it yet:
<https://stackoverflow.com/questions/68689396/how-get-lot-serial-number-in-netsuite-suitescript-2-0-for-inventory-adjustment-t>

Looks like you need to do a get instead of the set on the issueinventorynumber, then the _lot_ is on the 'inventorynumber'