Field in related record

[tothewine]

Is it possible, in the case of creating a related record in the lower panels, to ensure that some fields of the record are already pre-populated? What should be set in the formula?

[zerosix]

get the ids of the related records and check them or update them with record\update()

[rabii]

Is it possible, in the case of creating a related record in the lower panels, to ensure that some fields of the record are already pre-populated? What should be set in the formula?

Formula won't pre-populate the fields, it will set them when the record is saved. However if you mean to pre-populate the fields of the related record with some values from the parent entity then yes, you can do it in the clientDefs / relationship of the parent entity. Below is the code example between the account and contact when a new contact is created it will pre-populate the address from the account address

"contacts": {
            "createAttributeMap": {
                "billingAddressCity": "addressCity",
                "billingAddressStreet": "addressStreet",
                "billingAddressPostalCode": "addressPostalCode",
                "billingAddressState": "addressState",
                "billingAddressCountry": "addressCountry",
                "id": "accountId",
                "name": "accountName"
            }
}