Routing & Integration
Guides to entry links, endlinks, signatures, postbacks and connecting survey platforms to sample suppliers.
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Server-to-server postbacks vs browser redirects: which one should you trust?
Survey outcomes travel through the respondent's browser or directly between servers. Each channel breaks in its own way. Use redirects to move people and server calls to move money.
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Survey redirect status codes: mapping outcomes across sample platforms
Every sample platform encodes survey outcomes its own way, and a surprising amount of reconciliation pain is just translation errors between them. Map outcomes, not numbers.
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What is a survey endlink? Complete, terminate, over quota and quality redirects
Endlinks decide what gets paid for. Most reconciliation disputes we would expect to see trace back to four of them being set up carelessly, usually in the last hour before launch.
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How to secure survey redirects with HMAC signatures
A quarter of supplier traffic still arrives on links that can be edited in the address bar. Signing redirects takes an afternoon. The one rule people break is computing the signature in the respondent's browser.
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Setting up third-party sample redirects in Qualtrics
Capture the session ID with embedded data, send each exit to the right endlink, and test every path with a sandbox session. The part most setups get wrong is the terminate branch, not the complete.