Created From
This field is used to (optionally) populate the Created From field on the NetSuite Sales Order.
To populate the Created From field, we need to pass the Internal Id of the NetSuite Estimate to NetSuite while creating the Sales Order through Custom URL.
Once you have the Internal Id of an Estimate record, you can pass it to Breadwinner either as a field that contains the Internal ID or as raw data within the Custom URL itself without creating any fields (only an appropriate choice if you the same, specific Estimate is used as the Created From value every time).
You can also pass the Estimate's Salesforce Record Id in the mapped field of the button URL, then Breadwinner fetches its Internal ID and sends it to NetSuite in the create request.
At the transaction level:
Note: If Line Items are not passed through the Button URL, then a Sales Order will be created with the same Estimate line items, however, this creation without Line Items is a beta feature and is not generally available.