Post Affiliate Pro parameter
What is the a_bid parameter?
a_bid is Post Affiliate Pro's post affiliate pro banner id. a_bid identifies the specific banner/creative in Post Affiliate Pro. Merchants prune old creatives without realizing published links reference them.
Where it appears
In your link AND it must survive to the final page
Example
https://merchant.com/?a_aid=youraffid&a_bid=11112222If a_bid is missing
A deleted banner (a_bid) can break the link even while your a_aid is valid — depending on configuration the click errors or falls back without attribution.
How Post Affiliate Pro tracking fits together
Post Affiliate Pro tracks via parameters (a_aid, a_bid) on the merchant’s domain, read by the software’s script or a redirect script (often scripts/click.php) that sets the affiliate cookie.
Attribution depends on the merchant keeping the software installed and the specific banner (a_bid) alive. Both are invisible from the outside except through behavior: dead banners redirect oddly or drop parameters.
Frequently asked questions
What does the a_bid parameter do?
a_bid is Post Affiliate Pro's post affiliate pro banner id. a_bid identifies the specific banner/creative in Post Affiliate Pro.
What if a_bid is missing?
A deleted banner (a_bid) can break the link even while your a_aid is valid — depending on configuration the click errors or falls back without attribution.
Is a_bid in my analytics affiliate traffic?
Yes — if a_bid shows up in your site analytics or server logs, that traffic arrived via Post Affiliate Pro affiliate links.
Related
Check every affiliate link you've ever published
Parameter checks are one of five validations Afterlink runs on every Post Affiliate Pro link. Afterlink scans your entire YouTube channel or website, follows every redirect chain, and alerts you the day a link breaks.
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