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The fields and their meaning in the popup window:
'Private individual: The payer is a private individual
Organisation: The payer is a legal entity. If the payer is a individual entrepreneur, it must be recorded as organisation.
Selecting either choice, the system lists the private individuals and organisations that the student had recorded previously. If the student wants to select one that was not recorded before, he or she can use the buttons Add a new individual person or Add new paying organization. The institute may require a that new payer can be recorded with administrative check only. In this case some lead time should be expected while the check is done and the administrator endorses the recorded payer.
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An invoice for bank transfer is important if the self-support or other fee of the student is paid by a company or other organisation that require a bank transfer invoice. In all other cases it can be blank. The generated invoice can be viewed and printed on Finances/Invoices screen, with the Invoice data link of the details of the Item to be paid, and the Invoice data link of the Paid item.