Dear ww, thanks for the reply, again . I tried it with a 'L_' (or a combined) network. I am still getting the same result: Authentication mode is not a valid SSID override option.
Dear ww and John-K, thanks for your reply. Yes, that is correct that I am trying to configure the whole network of a template. Is that possible to configure the SSID of the template using Meraki API v1? Because, the provided documentation, organizations/:organizationId/configTemplates/, purpose is only to view or edit basic information of the template, such as name, product type, and time zone.