Outage in Zapier
Code Steps failing with "No response from child process" across Zaps/APIs
Resolved Minor
May 20, 2026 - Started about 6 hours ago
- Lasted about 2 hours
Incident Report
Summary AI Generated
Between approximately 10:00 AM EDT and 1:28 PM EDT, Team plan customers using Python Code Steps experienced failures with "No response from child process" errors, while other plan types and code languages were unaffected. The issue was resolved by disabling a recent change that routed Team plan Code Steps through a new system, which significantly reduced error rates within 1.7 hours.
Starting around 1:55 p.m. UTC, Code by Zapier steps have started failing with the error:
"No response from child process"
Our team is actively investigating and has engaged the owning engineering team.
Components affected
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Latest Updates ( sorted recent to last )
MONITORING
about 5 hours ago - at 05/20/2026 05:38PM
What happened: Between approximately 10:00 AM EDT and 1:28 PM EDT today, some Team plan Zaps with Python Code
Steps failed with this error:
"Error: No response from child process"
Who was affected: Team plan customers using Python Code Steps only. Other plan types (Enterprise, Pro, Free) and other Code Step languages were not affected.
What we did: We disabled a recent change that routed Team plan Code Steps through a new system. Error rates dropped significantly after this change, and we have not seen new occurrences in the last several minutes.
What’s next: We are monitoring for stability and will post a final update shortly.
If you need help, contact Support: https://zapier.com/app/get-help
INVESTIGATING
about 6 hours ago - at 05/20/2026 05:16PM
Starting around 1:55 p.m. UTC, Code by Zapier steps have started failing with the error:
"No response from child process"
Our team is actively investigating and has engaged the owning engineering team.
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