Without subids your stats say «you earned €120». With subids they say «Instagram gave you €90 from 20 clicks and the newsletter €30 from 200». Same commission, completely different information — and completely different decisions.
How to use it
1
Add ?subid=channel to your PartnersMy link: ?subid=ig-bio, ?subid=youtube-desc, ?subid=christmas-2026.
2
Use short, consistent names — in a month you'll have hundreds of rows and will want to group them.
3
You can stack up to 5 levels (subid, sub2, sub3...) for campaign, piece and variant.
Pro tipThe panel's SubID report crosses clicks, conversions, CR and EPC per tag. Check it weekly: kill what doesn't convert and double down on what does.