Hi, I did a quick search and didn't see an answer for this, so I do apologize if this has been asked before.
Anyway, according to the style guide thread in this section, all of Sony's item numbers should be four letters, a dash, and then a set of numbers. On Playstation Vita releases, there is a number on the card that matches this while there is a different item number on the spine of the box that is just a series of numbers. The latter is on numerous game pages instead of the former. Which is the correct one to use? I just want to make sure I add accurate information in the future. Thanks!
EDIT: Here's an example.
https://vgcollect.com/item/119191 The simple string of numbers from the spine is currently in the Item Number field and you can see the PCSE number on the card in the third image.