I've been unable to link a supplier invoice in the new Spend Money In-Box, to an existing Spend Money payment - even though the payment included the name from the Supplier Card.
However, I got...
Hi Kym__Yeoward
Sorry for a late reply, I didn't spot your post until now. For some reason, it looks like the Link to Existing Spend Money works for some customers and not others depending on which Azure Cluster you happen to be on. This is something that will be completely fixed in the 2019.4 deployment.
From my own searches, I can see that Suja put this in a 2019.3 Bug List post (It's at the bottom): AccountRight 2019.3: Things you should know
Though we did release code into the 2019.3 branch to patch this, I believe there's talk to deploy this so that it fixes this issue prior to 2019.4. I'd suggest keeping an eye on that post to hear more if that becomes a reality.
Sorry for the problems this has been giving.
Cheers,
Hayden