How to transfer inventory between multiple locations in QB Online?

Hello, @hamid-acma-yahoo.

The feature to transfer inventory items from one location to another is still unavailable in QuickBooks Online. I can see some other users posting about this option, so I’ll be sure to take note of it. It will make QuickBooks Online (QBO) more convenient to use. 

For now, I suggest you to check the following articles to know more about the current features that we have in managing your inventory:

• Set up and track your inventory in QuickBooks Online
• Adjust inventory quantity on hand in QuickBooks Online

I'll be right here if you need more help. Keep safe and have a wonderful day!

@hamid-acma-yahoo 

Consider having an inventory management app with the multi warehouse feature to integrate with your QBO.

Multiple Warehouse feature, already baked into Quickbooks Enterprise, is required for Quickbooks Online to be ready for business.