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

# Problems with the Vantage API

> Diagnostic information to collect when encountering problems with the Vantage API.

When you encounter problems with the Vantage API, collect the following diagnostic information:

1. Your email address used to generate an authorization token in the Vantage API.
2. The sequence of HTTP requests with responses describing the scenario.
3. If the problem happened during a transaction, the transaction ID of the unsuccessful transaction. Vantage returns this ID in response to the `POST /api/publicapi/v1/transactions` request. For more information, see step 2 at [How to Process Documents Using the Vantage API](/vantage/developer/processing-documents/processing-documents).
4. The document being processed (if you're allowed to share it with ABBYY).