Principally, all purchases should be done via Unikat. In some exceptions, otherwise arisen expenses can be reimbursed through us, but only after prior agreement. Please contact us if in doubt. In case of such reimbursements, please use the correct form and don’t forget to attach the relevant receipts and a bank statement.
A frequent case where this is relevant are abstract fees that occur when presenting at a conference. They can unfortunately not be reimbursed together with the business trip, but need to be claimed separately.