I just read through the previous thread to jog my memory. We have the short reference field in a recurring template and in the previous discussion we looked at using this as a holder for the purchase reference and carrying it forward to every invoice produced by that template. The problem is that many people are using this as an identifier for the recurring template and would not want it to carry forward automatically (i.e. if it’s an internal reference).
One solution here is for us to recognise a prefix e.g. PR: so that whenever the short reference in the recurring template is prefixed with PR: it carries the reference to all the invoices created from that template. I think that will also solve the problem raised here by @BanksyBoy back in October.
We’re looking into this now.