We have informed you about this earlier and today the time has come: versions 1, 2 and 2.1 of the bol.com Retailer API will be turned off at 10:00. If you work automatically with bol.com via the API, this is now only possible via the API v3.
Were you not prepared for it? Here you can read how you can still migrate to the API v3. You can also always use the seller dashboard; this way you can continue to sell (in the meantime). Are you experiencing problems with the processing of existing orders? Then do not hesitate to contact the Partnerservice.
Read more about the API v3 here.