I have created a simple custom field in the Customer record that contains up to 12 characters. The field represents an additional “Customer ID” that is different from the native ERPNext customer ID. We use this additional information to help correlate ERPNext customers to the same customer in a different 3rd party system.
All of this part I already have in place and working.
Now, I have also added the same field to the Sales Invoice. In both cases the field is called [jmi_customer_id].
I want to populate the field in the Sales Invoice automatically when an invoice is created. From what I understand this is done by using the “Customize Form” for the Sales Invoice page and adding a “Fetch From” command to the field to tell it to grab the [jmi_customer_id] field information from the “Customer” record.
So my question is:
When I am in the Customize Form section of the Sales Invoice, what syntax would I use to get the [jmi_customer_id] data from the customer record?
This turns out to be the link to the documentation in the online manuals for the entire process of creating links and then fetching field information. While not as concise and easy to understand as the answer from @brian_pond , the information is all there (if you can follow the flow and style of the author). It was just not as easy for me to understand.
