[REST] Web Services - Query By Date

SOLVED

Hi there,

I'm trying to use POSTMAN to query if an INVOICE exists by date.

What DATE format should I use?

I'm trying: xx.xx.xx.xxx:xxxx/.../YSINVOICEV eq '2017-05-24', but I get the response:

"$message": "X3 engine error: Type incompatibility".

How should I use the GET method passing the date as parameter?

Best Regards