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<@UCLB7CN67> I believe in client script you need to get the field and then set `.isDisabled = true;` a bit like the below.
```var currentRecordField = context.currentRecord.getField({fieldId: 'myfieldid'});
currentRecordField.isDisabled = true;```

Tried this already, but didn't seem to work on LineItem

hmmmm that is what i am using on a line item on IR