No spot colours (exceptions)
This check is making sure that any spot colours used in InDesign are intended and have been marked as intended exceptions.
The use of the PANTONE colour library is required for inks that are not made from the CMYK process colours. The Pantone colour reference should be explicit in the spot colour name.
Spot colours used in others apps such as Photoshop and Illustrator are OK to use. They should also use the same PANTONE naming.
When including Pantone spot colours to use as inks (rather than indicating special finishes) these colours must be agreed with Production and also marked as acceptable.
Fix this problem by clicking Mark as OK for these spot colours so they will be allowed in subsequent checks of that document.