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Engineering7 min read

Connecting your stack without breaking it

Integrations fail quietly. A checklist for wiring up sources so the numbers stay trustworthy months after setup.

TTobias RennerStaff Engineer

Quiet failures are the expensive ones

A broken integration rarely throws an error in your face. It just stops sending rows, and the chart flattens in a way that looks like a slow week.

Instrument the pipeline itself

Track row counts and last-sync timestamps per source and alert on silence, not only on errors. Absence of data is data.

Name things once

Agree on a shared definition of an active user, a qualified lead, and a closed deal before mapping fields. Renaming later means reprocessing history and relitigating every past decision.

Version your definitions

When a definition changes, keep the old one alongside it for a full reporting cycle so trends stay comparable and nobody argues about a step change that was really a redefinition.

Test with a boring week

Validate a new source against a week nothing happened. If the numbers disagree when the business was quiet, they will disagree far worse under load.