# Use the Connector Logs

As the MongoDB Connector runs, it outputs messages to its logs. Most log messages occur due to normal operation, for example when the connector starts, receives actions, or sends documents for ingestion. If the connector encounters an error, the logs are the first place to look for information to help troubleshoot the problem.

The connector separates messages into the following message types, each of which relates to specific features:

Log Message Type | Description
--- | ---
`Action` | Logs actions that are received by the connector, and related messages.
`Application` | Logs application-related occurrences, such as when the connector starts.
`Collect` | Messages related to the `Collect` fetch action.
`Delete` | Messages related to the `Delete` fetch action.
`Insert` | Messages related to the `Insert` fetch action.
`Synchronize` | Messages related to the `Synchronize` fetch action.
`View` | Messages related to the `View` action.

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