> For the complete documentation index, see [llms.txt](https://cee-systems.gitbook.io/tcp/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cee-systems.gitbook.io/tcp/starting-with-exchange/how-to-open-pnr/untitled-1.md).

# Good to remember

The exchange/reissue should always be done in the PCC where the original ticket was issued. If you are logged in to a different PCC, TCP Exchanges & Refunds service will return the following warning message:

![](/files/-M84tAddtaxDZ2EEJER8)