Cost of purchases allocated to a project

Hi

Any advice? I’m trying to allocate a purchase order, or receipt/invoice to a project but can’t get the costs to register in the costing and billing section, what’s going wrong?
I’m creating a PO from the project directly, it shows in the info menu at the top. I receipt it, I convert to invoice, but at no point does the value pull through into the ‘Total Purchases’ field in the costing and billing.

Thanks

Anyone? I must be missing something as this is a pretty important requirement - do enlighten me

I think it comes not out of the box, i believe you have to customize it. And/or create an issue/pull request on github