Error message when 'Refresh PC Prices' if a purchase order line was linked to 2 or more material lines

If a purchase order line was linked to 2 or more material lines, the action Refresh PC Prices incorrectly displayed the message: "Purchase specifications can only be adopted if it is a 1-to-1 relationship (2453)". This should only appear if the purchase order line or one of the material lines contains specifications and the purchase order line is linked to multiple material lines. In that case, it is not possible to perform the action Refresh PC Prices.