---
title: "Tracing messages"
slug: "oas-aref-tracing-messages-3-28"
updated: 2025-07-04T10:04:21Z
published: 2025-07-07T13:44:54Z
canonical: "docs.onespan.com/oas-aref-tracing-messages-3-28"
---

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

# Tracing messages

Basic and full tracing levels output different amounts of information in trace messages.

 

| Trace level | Message contents |
| --- | --- |
| Basic | [date_time] [thread ID] [level code] message |
| Full | [date_time] [thread ID] [level code] [internal function name] message |
| Debug | [date_time] [thread ID] [level code] [key] [internal function name] message |

Any timestamp that appears in a tracing message is in UTC time, not local time. The letters UTC appear after the timestamp in the tracing message.