After completing this tutorial, you will have learned how you can use your site’s wp-config.php to configure WPO365 (but without IdP-relevant options). By default, the WPO365 configuration is saved in the database.
See this article, if you want to utilize wp-config.php to configure the Identity Provider options (for SSO, mail and other related integration scenarios). If you need to configure more than one Identity Provider, then please refer to this article.
This is an premium advanced scenario that is especially of interest for those site managers that deploy new development, test, staging and productive versions of their website using devOps workflows and need, for example – to change the mail configuration to enable WPO365’s Mail Staging mode for the website instance that is being deployed.