Salesforce OAuth2 Error

salesforce has recently introduced additional security measures, enforcing a change in settings by salesforce administrators for all connected apps (including salesforce’s own applications) consequently, if you see an oauth2 authentication error, with the message "oauth approval error generic" , then you will need to install our application in your salesforce environment to grant login access the full announcement and guidance provided by salesforce is available here prepare for connected app usage restrictions change https //help salesforce com/s/articleview?id=005132365\&type=1 install trusted connected apps to fix this issue, you will need to configure the connector product in your salesforce org in setup, search and select connected apps oauth usage locate the application labelled salesforce connector (unaric) , click install salesforce displays an installation page click install again this only needs to be completed the first time the application is used; it is a one time approval the installation requires salesforce administrator access, so you may need to contact your salesforce administrator to enable this for you