Search Q&A
notice period
I do not think it violates the Belgium law or probably the European law too.
But, your former employer must have signed a document with your Client regarding this scenario.It normally is for 1 year or 6 months. If the relationship between your Client and former employer business wise has a huge impact then it will be enforced else i do not see issues.
keep a low profile for a few days with your emplpoyees from former organization.