This is a critical issue affecting internal financial controls. Currently, when the office adds a Company Cost to an invoice item, technicians cannot edit or delete that cost field, which is correct. However, they can simply delete the entire invoice item and create a new one, completely bypassing the company cost that was added by the office. As a result, company expenses can be unintentionally or intentionally removed without any notification or audit trail. The office has no reliable way to identify when this happens, creating inaccurate profitability reports and financial losses. Suggested Solution: Create a dedicated Company Cost / Company Expenses section, similar to the existing Tech Expenses section. Only office users (or users with permission) should be able to add, edit, or remove Company Costs. Company Costs should remain attached to the job regardless of invoice item changes. Optionally, log any attempt to remove or modify Company Costs in the activity history. This is an important accounting and security issue, not just a workflow improvement. It directly impacts reporting accuracy, profit calculations, and internal financial controls. We would greatly appreciate prioritizing this request.