---
title: "Reference Info, Codes, Tables | Veriff.com"
slug: "reference-info-codes-tables"
description: "Access comprehensive reference information, session codes, decision descriptions, document types, data formats etc. for info and troubleshooting."
updated: 2025-09-12T14:22:25Z
published: 2025-09-12T14:22:25Z
canonical: "devdocs.veriff.com/reference-info-codes-tables"
---

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

# Reference Info

- **Codes (tables)**
  - [Verification session decision codes](/v1/docs/verification-session-decision-codes-table), explaining the result of a verification session
  - [Verification session status codes](/v1/docs/verification-session-status-codes-table), explaining the progress of a verification session
  - [Granular reason codes](/v1/docs/granular-reason-codes), detailing the verification session decisions
  - [Common HTTPS status codes](/v1/docs/common-http-status-codes), indicating the status of a HTTPS request
  - [Credentials and authorization error codes](/v1/docs/credentials-and-authorization-codes-table), indicating common issues why webhook or public API authorization fails
  - [Some troubleshooting codes](/v1/docs/some-troubleshooting-codes-table), indicating common issues why a request fails
- **Supported document types**
  - [Supported document types for IDV](/v1/docs/supported-document-types), listing the document types supported
- [Media file mime types](/v1/docs/media-file-mimetypes)
- [Context types (image, video)](/v1/docs/context-types-image-video-1), explaining different context labels of images in IDV flow
- [Document data fields](/v1/docs/document-data-fields-1), explaining the sources from where the data is extracted on identity verification documents