Yes, 2,800 PUs (~$42 at $0.015/PU) for 14,000 invoices is reasonable—about 0.2 PU per invoice. This aligns with UiPath’s official PU guidelines, which you can check in their Platform Units documentation.
Please note that 0.2 PU is additionally consumed if Generative validation is used in the project, .
And PU can be purchased by just 1K units and it may be necessary to take care when calculating ROI.