I would set up summary and sub accounts something like this:

Workshop Expense

Course material

Catering

Room rental

You may want to have a summary account for each workshop.

You may also want to use “Classes”

Resolution for 'Course material issue: 'I provide lunch with paid registration fee for workshops I conduct. How should I record the caterer’s expense? Is this “meals” or “supplies” or perhaps something else?' available: Yes.

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

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