Changes allowed only for incorrect dates
If you cannot use the visa for the journey for which you applied for it, for example because the dates of the visa do not match the dates on the plane tickets that accompanied your application, contact the Dutch embassy or consulate-general as soon as possible.
Other situation
If you want to change the dates of your visa for another reason, for instance because you have planned a new trip to the Netherlands or because you have postponed your trip due to the amount of time needed to process your visa application, this not possible. But you can apply for a new visa.
Contact
If you have any questions, please do not hesitate to contact us.