I’d like to share some details why your checks are not automatically matching with the transactions that are already entered in QuickBooks Online.

This is currently an ongoing issue which our online banking team is working through. Right now, they are working for an immediate fix.

I’d recommend you to contact our QuickBooks Online Customer Support Team. […]

Resolution for 'Check transactions issue: 'Check transactions not matching' available: Yes.

The Check transactions issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the Check transactions issue yourself by looking for a resolution described in the article. If it is a complex Check transactions issue or you are unable to solve the issue, you may contact us by clicking here or by using other Check transactions support options.

For more information about resolving issues related to Check transactions in Quickbooks/QBO or to get support for the issue 'Check transactions not matching', click the link below: