Hi,
We developed a module that adds the purchase on the incomming moves of
the shipment and in the invoice_lines of a supplier invoice.
This fields are searchable, so they can be used to filter which moves
and invoice lines are attached to the Incomming Shipment/Invoice.
We found it really usefull when you have a lot of move from the same
supplier. The code (for version 3.4) is available here [1]
Hope it helps someone else.
Any comments will be appreciated.
[1] https://bitbucket.org/nantic/trytond-account_invoice_search_by_purchase
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Sergi Almacellas Abellana
www.koolpi.com
Twitter: @pokoli_srk