I want to create a custom field on the supplier invoices analysis screen but no data is showing.

I am going to the LU IncomingInvoice:

Using the api ‘project_api.get_name’. The field code_c is the project_id.

When I load the custom field to the view I see no data:

I have managed to create this custom field on the Supplier Invoice Analysis (detailed screen) which uses LU ‘InvoiceLedgerItem’.

Any ideas?

Thank you.