Class and location tags are internal and for reporting, as a result they can not be set to print on the donor copy

If the funds that are being donated to are constant, you could make a service item for each fund with preprinted description of the fund so the donor […]

Resolution for 'class codes issue: 'I want to print class codes on sales receipts.' available: Yes.

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

For more information about resolving issues related to class codes in Quickbooks/QBO or to get support for the issue 'I want to print class codes on sales receipts.', click the link below: