Here is a screen shot to help you with the Price Update tool.
All the steps worked well , but when I reach the end of the procedure the same error message appears after several attempts. Please see the photos of the bug!
Thinks for your Help
Sorry you're having trouble Kamel42. It would be best for you to contact firstname.lastname@example.org directly or click HERE for a location near you and send them those screen shots. Sorry I couldn't be more help.