On my desktop QB I could search my customers by mobile phone number. I can't find this facility in QB online. Is it possible?

Hey economeyes, Thanks for your post. Unfortunately, Online does have some limitations in comparison to our desktop product; this is one feature/function which we saw was not being used by any significant portion of our customer base.

You can give us feedback on the product, and on the development of our online, using this link https://feedback.qbo.intuit.com/  - Please do suggest this, you can help shape the future of the product you are paying for :)