Why is there no Snap Receipt button/option in my QB App for one of my companies?

Hello there, @langulo.

I know how you want to use the snap receipt feature in the QuickBooks mobile apps. For now, this functionality is only available in selected regions like the United States, the United Kingdom, Canada, and Australia. 

You can check out these links to get some insights about the receipts capture feature:

• Common questions about importing data to QuickBooks Online
• QuickBooks can do WHAT? Receipt Capture

In your region, I's recommend using a third-party app that lets you capture receipts using your QB mobile apps.

Here's another link that can guide you in attaching files manually in QuickBooks.

Keep us posted if you have other concerns, I'm always here to guide. Keep safe!