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SQL Exception in Active Forums – Invalid Length Parameter in LEFT or SUBSTRING Function

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D0rk52

Growing Member

Posts: 80

New Poster

7/6/2025 7:19 PM

Hi all,

We’re running into a recurring SQL exception within the Active Forums module on DNN 10. Here's the core error message from the logs:

Invalid length parameter passed to the LEFT or SUBSTRING function.

For now, we've documented it and are investigating further. If anyone has patched this or can point to an updated stored procedure or module release that addresses this, we’d appreciate the help!

Thanks,
—Joseph
https://azmanagedit.com

johnhenley

Advanced Member

Posts: 233

Helpful Replier

New Poster

Engaged Reader

7/7/2025 6:54 AM

This is fixed in upcoming 9.0 forums release. https://github.com/DNNCom...nityForums/pull/1464

If you want to manually fix it, you can take the sql from that PR.

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