1. Make sure you have generated Bing Shopping Feed after installing the app. 
2. After your feed is generated, you must have submitted it to Bing Merchant Center. Here is the Process. 
3. After you have submitted the feed you will have to wait for 2-5 days for feed to be approved. However, you can create a shopping campaign in the meantime. 
4. You must create at least one shopping campaign using the same feed. You can do that while the feed is being reviewed and crawled too. Here is the process. 

If you are still confused or not clear of your Bing Shopping Campaign and Feed status, we are ready to help you out till you have Shopping Campaign up and running on Bing. Please use Chat Option from within app for help or Add us on Skype: amit.jivani