# Debug bundles

When a failure does not make sense, the run log often is not enough: it says what happened, not what the page looked like. A debug bundle is the export that answers the second question.

It contains full page content, so treat it as page content when you decide where to send it.

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## What is in a bundle

* Each page's full content, in two formats.
* Attachment and content listings for those pages.
* The run's own record for the same pages.

Attachment and diagram file contents are not included, so a bundle is much smaller than an export of the pages themselves.

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## How to build one

| **From**                          | **Gets you**                                |
| --------------------------------- | ------------------------------------------- |
| A single page in the activity log | That one page                               |
| An unrecognised error group       | Every page behind that group, up to the cap |

⚠️

**Bundles include page bodies in full.** The product says so before it builds one. Check what is on those pages before attaching a bundle to a ticket, and prefer a single-page bundle where it will do.

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## Limits

* Capped at 25 pages, sampling the rest if the group is larger.
* Only one bundle can be built at a time.
* Bundles are built from the results on screen, so the same rule applies: build it before you navigate away.

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## A few things that catch people out

* A single-page bundle is usually enough to diagnose a failure class. Start there.
* The 25-page cap applies however many pages hit the same problem, so a bundle is a sample rather than a census.
* If a failure group carries a hint, follow the hint first. Bundles are for the unrecognised ones.

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## Related

[Downloading the run logThe lighter export.](https://help.gocapable.com/migration/downloading-the-run-log.html)

[TroubleshootingBefore you raise a ticket.](https://help.gocapable.com/migration/troubleshooting.html)

[Reading the resultsFinding the group to bundle.](https://help.gocapable.com/migration/reading-the-results.html)

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_Full page content. Send it carefully._