> For the complete documentation index, see [llms.txt](https://old-manual.converia.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://old-manual.converia.de/en/attendees/manage-persons-and-attendees/managing-bookings-and-invoices/add-to-or-edit-booked-offers.md).

# Add to or edit booked offers

- [Adjust price group retroactively](https://old-manual.converia.de/en/attendees/manage-persons-and-attendees/managing-bookings-and-invoices/add-to-or-edit-booked-offers/adjust-price-group-retroactively.md): Management -> Attendee Registration -> Bookings
- [Adjust payment method retroactively](https://old-manual.converia.de/en/attendees/manage-persons-and-attendees/managing-bookings-and-invoices/add-to-or-edit-booked-offers/adjust-payment-method-retroactively.md): Management -> Attendee Registration -> Invoices
- [Add a voucher retroactively](https://old-manual.converia.de/en/attendees/manage-persons-and-attendees/managing-bookings-and-invoices/add-to-or-edit-booked-offers/add-a-voucher-retroactively.md): Management -> Attendee Registration -> Bookings