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In beforeSubmit , can i add add new line in sublist ?
I want to add customer's salesteam using beforeSubmit
```                    newRecord.selectNewLine({ sublistId: 'salesteam' });
                    newRecord.setCurrentSublistValue({
                        sublistId: 'salesteam',
                        fieldId: employee,
                        value: 1
                    });
                    newRecord.commitLine({
                        sublistId: 'salesteam'
                    })```
I got this error
`TypeError: newRecord.selectNewLine is not a function`

the newRecord during beforeSubmit is not in dynamic mode

you must use <https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4273166777.html|Record.setSublistValue>

so if there are 1 line in the sublist, then i want to add a newline, i should do
record.setSublistValue({ line : thenextline}) ?

the fun thing is "thenextline" is actually the line count since it's zero indexed :wink: