You can manually copy the data from the VAT return and enter them through MTD Bridging Tool.
Before that, have you already entered the products in QuickBooks? If so, let me show you how:
Go to Taxes on the left panel, then choose VAT.
In the Returns section, select the return you’re working on.
Click on Submit return under the Action column.
In the Prepare VAT return page, select the correct Accounting period.
For the Start date, enter the period when you want to claim the tax.
In the End date field, enter the current tax filing period.
However, if these haven't been recorded, follow the steps in this article: How to enter historical information. Once done, you have to enable the MTD feature in QuickBooks so you can submit the return through that option.
Go to Taxes on the left panel, then click on Let's go.
Click on the Gear icon at the top, and choose Account and Settings panel.
Click on the Pencil icon for Making Tax Digital, then choose to Learn how to connect.
On the Get started with digital tax page, click on Let's go.