If you are getting the BI Connector license is not valid error (as shown in the below screenshot), when connecting to OBIEE from Tableau/Power BI/Qlik using BI Connector, please refer to the below steps to resolve the issue:
Step-1: Reactivate the License key in BI Connector.
Please refer to the following article to activate license Online: How to activate BI Connector license online?
In case of Offline activation, please try to activate the license key by generating a new offlineActivationRequest.json file and activate the license using the newly generated activation response file.
Please refer to the following article to activate license Offline: How to activate BI Connector license offline?
Step-2: Relaunch the Tableau/Power BI/Qlik application you are working with.
Note: If you are using Power BI, please clear the Power BI cache. Please refer to the following article with step by step instructions: How To Clear Cache Of Power BI Desktop?
If you are using Tableau Server/Power BI Gateway, please clear the browser cache and try reloading the workbooks.
Now connect to OBIEE from Tableau/Power BI/Qlik using BI Connector.