I'm to send sheddifedaus (dedzo) $500.00 and would like to know if it's a scam

Why are you supposed to send this money?

Did you contact them or did they contact you?

You need to provide more info - who, or what, is sheddi fedaus? A Google search only turns up this post and a similar inquiry you made on another web site, so it's not a term that we woud be familiar with. Is it a persdon's name? And what makes you think you are to send him/her/it $500?