Whilst this issue occurs within FinOps, it is due to the settings in Financials causing this to go to hold automatically.
Log into Access Financials.
Go to System (cog icon).
Click Security (shield icon).
Choose Profiles. Click on the edit button
Within Security Profiles, Covert Request under Purchasing needs to be selected.
If left blank this will default to Purchase Orders on HOLD, whereas ticked will default to Full Process.
The Details on the front page Default POP status will also need to changed to Full Process
If you change the above for the security profile that progressed the order, this should stop this from happening.
As for the order itself, it should be showing in Financials in:
Go to Purchasing then Enquiries
Open Outstanding Orders, to which the order should be on this list
Then if you change the status to Full process, then you should be able to proceed as normal.