Review Zapier Functions logs

Written by Owner

Updated at August 20th, 2025

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Table of Contents

Check logs for live runs Check logs during development How to read function run logs Run details Logs Trigger JSON Provide feedback and get help

You can review logs for any tests and runs of your functions. This helps you understand if your code is working as expected and find errors.

Beta

This product is in open beta. It’s available for use but still in active development and may change.

Check logs for live runs

If your function has been deployed, you can find logs for past runs in the Runs menu.

To display logs of a function run:

From the Functions home, select the function.
Click the Runs icon on the left. A sidebar will open.
From the list, select the run (identified by date, time, and function version) you want to review. A Run details sidebar will open on the right, displaying the logs for that specific run.

Tip

You can also see all test run logs in the Runs menu on the left side.

Check logs during development

You can check logs while writing code by testing your function. To display logs for function tests:

From the Functions home, select the function.
Click the Logs tab in the right sidebar.
Click Run function. Logs will appear once the test has run.

Tip

You can add a print() statement to your function to output and inspect data, such as action responses, via the logs during testing or debugging.

How to read function run logs

When your function runs, information is separated into different areas.

Run details

This section has information related to the whole run.

Run ID: the unique ID for that specific run of your function.
Date and time: the timestamp when the function started running.
Version: the function version used for that run. Learn how to view previous versions.

Logs

This tab displays the results of each specific action in your function.

Click the Copy button to copy the log content to your clipboard.

Trigger JSON

This tab displays all the data fields retrieved from the trigger app for that function run in JSON. Click the Copy button to copy the log content to your clipboard.

Provide feedback and get help

Submit a feature request, provide feedback on existing features, or get help from the Zapier Functions team. You can also discuss Functions with other users on Zapier's Early Access Program Slack.