Read the execution log#

The execution log runs along the bottom of the flow canvas. It records every event of a run as a timestamped line. You can expand a line that carries data to read the payload. This page covers what the log shows.

The heading and its controls#

The heading reads "Execution Log". While a flow runs, the run status sits next to it: "running", "completed" or "error", coloured to match. A bin icon clears the log, and a close icon hides the panel. If you run the flow again, a hidden log reopens.

What a line shows#

Each line shows the time it happened in your local clock, followed by the message. When an event comes from a particular block, a short tag for that block sits before the message. Error lines appear in red.

Blocks in the Visualization category write their output to the log, so a Display or Log block gives you a labelled record of a value as the flow ran. The log records failures too. Look here first when a run does not go as expected.

Expand a line with data#

A line that carries structured data shows a control to expand it. Open it to read the value underneath, formatted as JSON or plain text. Close it again to collapse the line.

Scroll back through a run#

The log follows the newest line as events arrive. Scroll up to read earlier lines, and the log holds its position instead of jumping. Scroll back to the bottom to follow along again.

Clear the log#

The bin icon removes every line. Use it for a clean slate between runs. Before the first run, the log reads "Run the flow to see execution logs".