You should establish ‘petty cash’ bank account which you maintain manually.  record the missing sales proceeds and cash disbursements thru that account.

Resolution for 'cash taken issue: 'How do I record cash sales when I have not banked them we bank 98% of all sales but occasional we will use cash taken and want to add as sale' available: Yes.

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

For more information about resolving issues related to cash taken in Quickbooks/QBO or to get support for the issue 'How do I record cash sales when I have not banked them we bank 98% of all sales but occasional we will use cash taken and want to add as sale', click the link below: