Imported from previous forum
[ original email was from Christopher Dovener - chris@dovener.com ]
Euronext use tag ids 10000+ on their public interface as if they are reserved tags. If you use 10000+ tags internally (the intended purpose) then there is a fair chance they will clash with those used by Euronext or will clash with those used by Euronext in future. Do I understand this correctly and has it caused you any trouble?