> ## Documentation Index
> Fetch the complete documentation index at: https://docs.drpn.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Reconciliation runs

> Troubleshoot failed or surprising reconciliation output.

A run that fails or returns empty usually leaves evidence — the result status, the support logs, or the source data itself. The failure is fixable. Start with the result row, then work down through these checks.

## Failed run

Check:

* Open **Ask Darpan**, search by the run name or output file name, and select **Open Result: ...**.
* Source inputs were present.
* Schema or RuleSet selection was valid.
* Connection records were reachable.
* The run or support logs show the first processing error, not only the final failure.

## Zero matches

If zero matches followed a file upload issue — encoding, leading zeros, or delimiter — check [File upload](/troubleshooting/file-upload) first.

Check:

* Join keys are populated in both sources.
* Identifiers use the same formatting.
* The selected schema reads the intended columns.
* The files are from the same business period.

## Unexpected differences

Classify each difference before changing configuration:

* Source data issue
* Schema parsing issue
* Mapping or normalization issue
* Rule classification issue
* Expected business variance