The user is receiving the error 'Invoice Date is set before the current lock date in Sage50 UK&I' on their invoice.
Sage 50 UK&I users who upload invoices to the Purchases/Sales folder.
This error will show when an invoice is not being allowed to be published to Sage due to the invoice date not falling within the current locked date range in Sage.
To clear this error, you will need to unpublish the invoice, edit the date of the invoice to be within the allowed date range and then republish.
Alternatively, you can amend the lock date in Sage prior to unpublishing and republishing this invoice.
For more information on setting lock dates within Sage 50 UK&I, please click here.