How to resolve “Error: Query activity terminated because it has exceeded the transaction log size limit. Reducing query complexity helps prevent this error in many cases” error?

The error message "Query activity terminated because it has exceeded the transaction log size limit" is an SFMC error that occurs when the SFMC’s transaction log -  which tracks changes made during the query execution, exceeds its maximum allowable size.

This can happen for several reasons, typically related to the complexity and volume of data being processed by the query built when running your Selection.

This error's cause and its solution are similar to an  SFMC Timeout.

How to resolve this?

To mitigate timeouts, you can:

• Optimize Queries: Simplify and optimize SQL queries and scripts. Here are some optimization tips for your Selections.
• Break Down Processes: Split large data processes into smaller, more manageable chunks using Waterfall Selections.

Related Article:

What’s the suggested solution for the error I am receiving

Session Timeout Issues