You actually lost me already in the first 3 paragraphs.
In the subject you mention MIRO, then you are talking about "PO Reference Tab " a little later about "sales orders " and about an error message without telling the message number.
MIRO is done for invoices from vendors, what has here a sales order to do? And also unclear why you bring a cost center into the game.
Can you explain what process you want perform that requires sales orders in MIRO?
Have you searched for OSS notes already? txjcd miro as search term has 270 hits!
