Fetching Values From Master

To pull a value of a link on selection, use the add_fetch method.

add\fetch(link\fieldname, source\fieldname, target\fieldname)

Example

Let' say you have created a Custom Field VAT ID (vat_id) in Customer and Sales Invoice and want to make sure that this value gets updated every time you select a Customer in a Sales Invoice.

To configure this, in the Sales Invoice Custom Script, you can add this line:

cur\frm.add\fetch('customer','vat\id','vat\id')