Invoice Numbers from (or to) Woocommerce

Hi,

At the moment I'm using Woocommerce to send invoices to customers (especially as it also offers a customer portal to download these). Unfortunately DEAR isn't able to re-use the Woocommerce generated invoice number but generates its own ones, which leads to inconsistencies.

It would be quite easy for DEAR to read out the invoice number field in Woocommerce at the same time as it is fetching an order or alternatively write its own invoice number to Woocommerce, so Woo can use this number for its invoices.