Can't see company.custom_data variables in test emails

I need some help with the new Intercom design. I used to send test outbound emails to myself to check if they look ok, and Intercom inserted data of one of random client to display in template, which was very useful.
But now when I try to send test email it just uses placeholders (which is the same as fallback data) instead of real data.
Is there any way to use real client’s data in test emails to distinguish them from the fallback?

Hi Valpi,

I hope you’re doing well.

When you send a test message, it uses real user data. If you getting the placeholders, that means that this user data attribute is empty.

Can you try to use user <>Firstname?

Hope this will be helpful.