# Getting the oAuth Access and Refresh Tokens
This appRules process is common to the Datasources using standard oAuth access (vs Client oAuth flow) in order to get access and refreshtokens:
Click on the Connection Parameters button from the datasource definition window:
Sample D365 Business Central Datasource
GetAuthorizationURL Procedure (if required)
Click on "Execute" to get the authorization URL, you then will be asked to connect with your credentials to the authorization environment
Once done, click on the highlighted "Authorize" button :thumbsup:
You then obtain your access and refresh tokens, click on the "Return" to update your datasource definition with the obtained values
The values are copied to the destination properties, you can then click on the below button to test your connection:
Click Save Settings to save your datasource (Connection Settings window) or generate the metadata (Refresh Metadata window)
