I am getting an izettle card reader.I intend to continue to raise my customer invoices in QBO. How will I match the izettle sales data that is imported to the invoice?

Hello there, @corrinagiles.

You need to manually record your iZettle sales since the integration with QuickBooks Online (QBO) is currently unavailable. To enter the sales data, set up iZettle as a bank account in QBO to track the invoice payments. 

To start, create a bank account for transactions processed from iZettle in the program. Here's how: 

1. Go to Accounting from the left menu. 
2. On the Chart of Accounts tab, select New at the upper right. 
3. Choose the Account and Detail types and make iZettle as the name. 
4. Click Save and Close. 

After that, refer to the steps below to receive invoice payments from your customers thru iZettle:

1. Open the invoice.
2. Click the Receive payment button.
3. Choose Undeposited Funds in the Deposit to drop-down.
4. Enter the invoice payment details.
5. Click Save and New. 

Finally, deposit the payments, including the fees. Let me show you how:

1. Click the New icon (+).
2. Select Bank Deposit.
3. From the Account drop-down menu, choose the bank you created for iZettle or where the actual payments are posted.
4. From the Select the payments included in this deposit section, mark the invoice payments you want to deposit.
5. In the Add funds to this deposit section, enter the fees being deducted and its details.
6. Click Save and Close. 

For additional reference, I've attached some articles about how to manage downloaded transactions, and perform reconciliation in QuickBooks: 

• Add and match downloaded bank transactions

• Reconcile an Account

Please know that you're always welcome to post if you have any other questions. Wishing you and your business continued success.