Spanish to English Bus/Financial Accounting

Hello everyone,

I'm doing a translation of audit practices (ES-Nicaragua > EN-US) and I'm kind of stumped on this one. I see we have an entry in the glossary here for "Comprobantes Contables", which gives "accounting tickets", but I don't see anything coming up in my searches when I add the word "Únicos" to the mix in English (unique, individual, single, etc.).

My instinct is to go with "Unique accounting entries" for "Comprobantes Únicos Contables (CUC)", but I wanted to check with the forum first.

Any thoughts or ideas?

Thanks in advance!

- Paul