The specifications of the order manual apply
(https://www.zuv.uni-heidelberg.de/finanzen/beschaffung/beschaffungshandbuch.html)
Please submit this documentation (1st page) later together with the invoice and the payment order to the financial accounting department.
You find a local copy of the form here:
There are explanations for the completion of this form Direct Link to the explanations from the ZUV
You will find a local copy here: