It seems Salesforce offers a separate endpoint for these requests (documentation). There is no query parameter isArchived or similiar. Currently, in KNIME Analytics Platform, you can’t change this endpoint.
I went ahead and modified our nodes slightly by adding a configuration option to the Salesforce Simple Query. Do you want to give it a try? Add this zipped update site to your KNIME update site manager and install the modified plug-in: 2025-07-31_knime-salesforce_updatesite.zip (301.3 KB)
(Prototype! Not part of any future release … yet.)
Otherwise, it should also be possible to use generic oauth connector nodes etc to authenticate with Salesforce and then use the GET and POST nodes. But that is more advanced.