Welcome to the Community, Mohammed. The inability to create a bill and the customer not appearing is often caused by cached data or browser-related problems that can interfere with QuickBooks Online’s (QBO) functionality. This unusual behavior can be resolved with some troubleshooting steps.
To better assist you, could you share the error message you encountered? This will help us pinpoint the exact cause of the issue and provide you the accurate resolution.
To start,, let's refresh your browser to reload the page and clear any cached data that may be contributing to the issue.
Next, log out of your QuickBooks Online account and sign back in. Doing so will refresh your session, which may help resolve any browser-related issues that could be affecting functionality. After signing back in, try creating a new Bill and check if you can save it without errors and if the customer now appears in the list.
You can also try using a private or incognito browser. This mode bypasses cached files, cookies, and browser extensions that could interfere. As another option, switch to a supported browser such as Google Chrome to ensure optimal compatibility and functionality.
Feel free to reach out if you have more questions. We're here to assist.
