I have created a custom field on a custom record trough serverWidget Module in beforeLoad Uservent

projectPromotionField = form.addField({
	id: 'custpage_project_promotion',
	type: serverWidget.FieldType.SELECT,
	label: 'Promotion'
})

Also setting the default Value of this field in the same beforeLoad

projectPromotionField.defaultValue = 'xyz'

Now if I am changing this field value. In afterSubmit I am able to fetch from the newRecord but not the oldRecord

promotion = context.newRecord.getValue('custpage_project_promotion')

But this is always coming empty

oldPromotion = context.oldRecord.getValue('custpage_project_promotion')

Any specific reason why field is not available in context,oldRecord?

I assume it’s not in old record because that’s a copy of what’s in the database. The field you’re using is not permanent & doesn’t exist on the persisted record

I am currently using the same approach, What I'm doing is on beforeSubmit, I would save the values on a custom field and will pull it again

@raghav Do you know difference between FORM and DATABASE TABLE? Who told you that. addField ADD CUSTOM FIELD TO. THE CUSTOM RECORD???

I ended up fetching the value from api call again. Another option was using the session module.

Ok, now we are aligned. record.getValue retrieves data from "database table"... if you don't store how do you expect value in command oldRecord.getvalue? @bt provided where clean explanation

newRecord.geValue works though. It was a unique interaction where the field doesn't come in the context of the old record but comes in a new record which I was unaware about previously. Anyway I have already got the answer I needed. Thanks for your input.