Why is there no manage catergories option?

Good thinking on checking with another browser, Longthor. That was an excellent troubleshooting step.

Since the issue could've been a simple browser problem, but persists, I recommend you to contact our live experts. They have specialised tools for a thorough diagnosis and can resolve this unusual behaviour.

Here's how:

1. Sign in to your QuickBooks Online (QBO) company using any supported browser.
2. Select the Help (?) icon located in the upper right-hand corner.
3. Scroll to the bottom of the help panel and select the Contact Us button.
4. Follow the prompts to choose your preferred contact method: Request a callback from an expert or Start a live chat.

You can refer to this article to find a time that works best for you: Support hours.

Feel free to reply to this post if you need further assistance.