Setting Clerk logging-settings in Magento1
First thing you have to do to change the logging settings, after the first data sync has run successfully, is to go into your Magento1 backend, choose Configuration under System:
Choose the main site (the site you’re attempting to affect) under CURRENT CONFIGURATION SCOPE:
Then, go to Settings => Logging Settings and set your preferred logging-settings and press Save Config:
The Logging settings include:
Only Errors: Will log any errors that stops the module from working correctly
Errror + Warn: Also logs warnings that are not causing the module to stop working, but might be necessary to fix as well.
Error + Warn + Debug: Logs everything that the module interacts with. This should not be enabled on a live webshop as it will slow down the site.