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The Run Log is your command center for understanding how your flows execute. It provides real-time insights into every step of your automation, from execution status to detailed input/output data, helping you quickly identify issues and optimize performance.
Important: Your workbook must be saved to track run history. Unsaved workbooks will show the current run log, but previous runs may not be recorded until saved.

How to Access the Run Log

There are two ways to access the Run Log depending on where you are in Gumloop:

What You’ll See in the Run Log

Once you’ve accessed the Run Log, here’s what information is available:

Execution Status

Real-time status indicators for each node showing success, errors, or running state

Performance Metrics

Time taken by each node and total flow execution time

Credit Tracking

Credit costs per node and total credits consumed by the flow

Data Inspection

Complete access to inputs and outputs for every node

Run Log Components

Execution Status Indicators

Each node displays a clear status indicator to help you quickly identify execution results:
  • Success
  • Error
  • Running
Green checkmark - Node executed successfully without errorsThis means the node completed its task and passed data to the next node as expected.
Node status indicators

Time and Credit Information

Monitor the performance and cost of your flow execution: Per Node:
  • Execution time: Duration each node took to run (e.g., “6.18s”)
  • Credit cost: Number of credits consumed by that specific node
Flow Summary: Located at the bottom of the Run Log, you’ll find:
  • Total execution time: Cumulative time for the entire flow
  • Total credits consumed: Sum of all node credit costs
Run Log Summary
Use these metrics to identify bottlenecks and optimize your flow’s performance and credit efficiency.

Inspecting Inputs and Outputs

One of the most powerful debugging features in the Run Log is the ability to inspect exactly what data flows between nodes.

How to View Data

1

Open the modal

Click the “See all inputs and outputs” button for any node in the Run Log
Inputs and Outputs button
2

Review the data

A modal appears displaying:
  • All input data the node received from previous nodes
  • All output data the node produced for downstream nodes
Inputs and Outputs Modal

Understanding Data Display

The modal shows data according to its type, with visual icons to help you quickly identify what you’re looking at:
Data TypeIconDisplay FormatUse Case
TextPlain text formatVerify text content and formatting
ListExpandable with item countsCheck list length and individual entries
FileFile names and metadataConfirm file processing and names
ObjectPlain textStructured displayInspect complex data structures
This modal is invaluable for:
  • Verifying data flow between nodes is working correctly
  • Checking text formatting matches your expectations
  • Ensuring list items contain the expected values
  • Confirming files are being processed properly
  • Debugging errors by seeing exactly what data caused issues
  • Start debugging from the first failed node and work backwards
  • Compare inputs vs outputs to see how each node transforms data
  • Use inputs/outputs to understand why a node produced unexpected results
  • Check for empty inputs that might indicate issues with previous nodes
  • Look for the type icons to quickly understand data structure

Working with Subflows

Subflows have special Run Log behavior that helps you debug complex, nested workflows. When your flow contains subflows, the Run Log provides two levels of visibility:
  1. Parent Flow View: Shows the subflow as a single node with overall status
  2. Subflow Detail View: Shows individual node execution within the subflow
1

Click the subflow node

In the parent flow’s Run Log, click on any subflow node
Subflow in Run Log
2

Click 'View Run'

A “View Run” option appears - click it to see detailed subflow execution
Subflow Run Button
3

Return to parent

Use the flow tabs at the bottom of the screen to navigate back to the parent flow
Why this matters: This navigation lets you pinpoint exactly where issues occur in complex workflows and see how data flows through different levels of your automation.

Loop Mode Execution

When nodes run in Loop Mode, the Run Log enumerates each iteration, giving you visibility into how individual items are processed.

Viewing Loop Mode Details

Loop Mode in Run Log
  • How It Works
  • Common Issues
In Loop Mode:
  1. Expand the node or subflow in the Run Log
  2. Each iteration is numbered (1, 2, 3, etc.)
  3. Click any iteration to view its specific inputs/outputs
  4. Monitor which items succeeded or failed individually

Debugging with the Run Log

Common Error Patterns

How it appears: “Failed to authenticate” or “Credentials not found”Solution:
  • Check your credentials in Credentials settings
  • Verify credentials haven’t expired or been revoked
  • Re-authenticate the integration if necessary
How it appears: “No input provided” or “Input is required”Solution:
  • Inspect the previous node’s output using the input/output modal
  • Ensure the previous node is outputting data as expected
  • Check for type mismatches between nodes
How it appears: “Request timed out” or “Execution exceeded time limit”Solution:
  • Break large operations into smaller chunks using Loop Mode
  • Add error handling with Error Shield nodes
  • Consider using pagination for data source nodes

Systematic Debugging Approach

1

Identify failed nodes

Scan the Run Log for nodes with error status indicators
2

Inspect inputs and outputs

Use the input/output modal to see exactly what data the node received and produced
3

Review error messages

Read the specific error information in the node’s output
4

Trace data flow

Follow how data changes as it moves through your flow to identify where issues begin
5

Check subflows

For complex flows, drill down into subflow runs to isolate the exact location of issues
6

Compare with history

Reference previous successful runs to identify what changed

Best Practices

Test with Small Samples

Run flows with limited data first to quickly identify and fix issues before processing large datasets

Use Error Shield

Wrap critical nodes in Error Shield nodes to see both success and failure paths

Monitor Credit Costs

Track credit usage in the Run Log to optimize efficiency and reduce unnecessary costs

Save Your Workbook

Always save your workbook to preserve run history for future troubleshooting and comparison

Document Run Links

Share run links with team members when asking for help or documenting issues

Review Regularly

Check previous runs periodically to catch patterns in errors or performance degradation

Quick Reference: Run Log Features

FeaturePurposeHow to Access
Node StatusView success/error/running stateAutomatically visible in Run Log
Execution TimeMonitor performance per nodeShown on each node in Run Log
Credit CostTrack credit usageDisplayed on each node and in summary
Inputs/OutputsDebug data flowClick “See all inputs and outputs” button
Subflow DetailsInspect nested workflowsClick subflow node → “View Run”
Loop IterationsView individual loop processingExpand loop mode node
Run HistoryCompare past executionsClick “Previous Runs” tab
Run LinksShare for collaborationAvailable in run history

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Summary

The Run Log is your most powerful tool for understanding, debugging, and optimizing Gumloop flows. By mastering its features - from status indicators to input/output inspection to subflow navigation - you can: Quickly identify and resolve issues with detailed error information
Understand data flow through your entire automation
Optimize performance by monitoring execution time and credit usage
Collaborate effectively by sharing run links with your team
Track improvements by comparing runs over time
Pro Tip: Bookmark successful run logs as reference points. When something breaks, compare the current run with a known-good run to quickly identify what changed.