WSProxy-updateBatch-regular-DEs-to-sendable.html

<script runat="server">  
Platform.Load("core","1.1.5");  
try{
  
var prox = new Script.Util.WSProxy(); 

var de1 = {
  "CustomerKey":"xxxx-xxxx-xxxx-xxxx-xxxx-xxxx", 
  "IsSendable":"true", 
  "SendableDataExtensionField":  
  {
    "Name": "email", 
    "DataType": "EmailAddress"
  }, 
  "SendableSubscriberField":
  {
    "Name": "Subscriber Key"
  }
};
  
var de2 = {
  "CustomerKey":"xxxx-xxxx-xxxx-xxxx-xxxx-xxxx", 
  "IsSendable":"true", 
  "IsTestable":"true",   
  "SendableDataExtensionField":
  {
    "Name": "emailaddress", 
    "DataType": "EmailAddress"
  }, 
  "SendableSubscriberField":
  {
    "Name": "Subscriber Key"
  }
};


var res = prox.updateBatch("DataExtension", [de1, de2]);
  Write(Stringify(res));
  
}catch(e){
Write(Stringify(e));
}
</script>