Post Affiliate Pro vs ShareASale: Links, Tracking, and Reliability Compared
Post Affiliate Pro is white-label affiliate software known for small-merchant in-house programs; ShareASale is affiliate network (merging into awin) known for legacy mid-market retail programs — but it is merging into Awin, so treat it as transitional. They solve different problems, and many publishers use both at once for different merchants. Mechanically they differ in link anatomy and failure behavior — compared in detail below.
Side by side
| Post Affiliate Pro | ShareASale | |
|---|---|---|
| Type | White-label affiliate software | Affiliate network (merging into Awin) |
| Link domains | merchant’s own domain | shareasale.com |
| Click ID on final URL | — | sscid |
| Deep-link destination param | — | urllink |
| Example link | https://merchant.com/?a_aid=youraffid&a_bid=11112222 | https://www.shareasale.com/r.cfm?b=123456&u=7890123&m=45678&urllink=merchant.com%2Fproduct |
| Most common failure | Banner or campaign deleted | Merchant migrated to Awin |
How Post Affiliate Pro links fail
Banner or campaign deleted
The a_bid no longer exists; depending on configuration the link errors or falls back without attribution.
Merchant retires the software
Pages load normally; a_aid does nothing. Detectable only via test conversions or your affiliate dashboard on the merchant’s program.
How ShareASale links fail
Merchant migrated to Awin
The defining failure of the ShareASale era’s end. Your old link may still reach the store, but attribution happens on Awin now — your ShareASale link no longer credits you. These links need to be regenerated on Awin.
Merchant closed their program
The link shows "merchant not found" or "program suspended". ShareASale historically hosted many small merchants, which churn more often than enterprise brands.
How to choose
- ▸Choose Post Affiliate Pro for small-merchant in-house programs.
- ▸Choose ShareASale for legacy mid-market retail programs — but it is merging into Awin, so treat it as transitional.
- ▸They are different kinds of platforms, so this is rarely an either/or: many publishers run both simultaneously for different merchants.
- ▸Whichever you use, the operational risk is identical: merchants leave, campaigns end, and product pages die — on both platforms — without notifying you. Monitoring matters more than network choice.
Frequently asked questions
Can I use Post Affiliate Pro and ShareASale at the same time?
Yes — publishers routinely run multiple networks side by side, since each merchant picks its own network. The cost isn't platform conflict, it's audit surface: two networks means two sets of link mechanics to monitor.
Which pays higher commissions, Post Affiliate Pro or ShareASale?
Commission rates are set per merchant program, not by the network — the same brand often pays identical rates wherever it runs. Compare specific programs, not platforms.
Do Post Affiliate Pro and ShareASale links break differently?
Yes. Post Affiliate Pro: banner or campaign deleted is the most common failure. ShareASale: merchant migrated to awin. Afterlink validates both with network-specific error detection.
Go deeper
Check every affiliate link you've ever published
Whichever you run, links on both Post Affiliate Pro and ShareASale break the same silent way. Afterlink scans your entire YouTube channel or website, follows every redirect chain, and alerts you the day a link breaks.
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