My parents are going to Amsterdam in April from Manila. I'm planning to let them stay in Dubai for a month before continuing to Amsterdam. Routing will be Manila-Dubai-Amsterdam, since they are applying their visas from Manila, is it possible that they'd be granted a visa with a validity starting a month after it is issued? The last time they got Schengen visa they were advised by travel agent to travel immediately upon issuance otherwise they said it will not be valid anymore, so I'm confused if my plan of letting them stay in Dubai for a month will be possible.
So, can a Schengen visa be issued 1 month before the start of validity date?