← Pinterest
Complex day at Pinterest

Decide if attribution stays in bidding before the 36-hour backfill

You’re the ai / ml engineer. Your team is in the room. Printed Oct 15, 2026.

A conversion-visibility gain is about to become the historical truth used by bidding.

Keeping more conversions visible protects measurement coverage, while audited accuracy protects ROAS decisions and advertiser trust.

Who you’d be doing this for

“Finance saw the conversion jump this morning and asked whether we found demand or changed the math.”

Farid Abbasi · Growth Marketing Lead

Uses app conversion reporting to manage target ROAS budgets and explain results to finance.

What is at stake

Attributed conversions rose 14%, but audited samples disagree across app surfaces and match confidence. You must weigh wider conversion visibility against a reporting history and bidding signal that cannot be cheaply corrected.

Why it isn’t already fixed

Every obvious fix costs something else. That’s the part you’d have to decide.

  • signal coverage vs. audited accuracy
  • backfill deadline vs. reversible learning
  • marketplace continuity vs. budget misallocation
  • automated evidence vs. human verification

Why Pinterest

Conversion visibility feeds ranking, bidding, measurement, and reporting across Pinterest ads.

Written with these in mind

ads measurement ML engineerML reliability engineerapplied scientist with production systems depth

Not your kind of problem? 40 more at Pinterest, or browse every organization.

This is the setup. The work is inside.

Running it puts you in the room: the full situation and its constraints, stakeholders who push back in their own words, and the decisions that are yours to make. What you produce becomes a Day One Plan — work you can show someone instead of describing.