It usually takes a day.  If you don’t see them, contact whoever was doing the test for you.  Perhaps you entered the wrong bank information?

Resolution for 'contact whoever issue: 'why am I not seeing the test transactions in my checking account?' available: Yes.

The contact whoever 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 contact whoever issue yourself by looking for a resolution described in the article. If it is a complex contact whoever issue or you are unable to solve the issue, you may contact us by clicking here or by using other contact whoever support options.

For more information about resolving issues related to contact whoever in Quickbooks/QBO or to get support for the issue 'why am I not seeing the test transactions in my checking account?', click the link below: