Fortnite Support a Creator Code Report revenue to the employer?

I have now received a support a creator code, which allows you to earn money. I'm currently training in public service. Do I have to tell my employer this kind of "secondary job"?

Not the employer?

At most the tax office 😅

Well, secondary activities MUST be communicated in writing to the employer. However, I do not know if this is also a side job.

Strictly speaking, you do not do anything, right?

Not that one. That's why I'm not sure if it's an AUXILIARY… Whether I have to tell my employer