SubscribeResponseMessageType.Watermark Property
Definition
Important
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The Watermark property gets or sets an event bookmark in the mailbox event queue.
public:
property System::String ^ Watermark { System::String ^ get(); void set(System::String ^ value); };public string Watermark { get; set; }Public Property Watermark As StringProperty Value
The Watermark property returns a string that contains an event bookmark.
Remarks
If a Subscribe request contains a watermark, the subscription is created from the watermark forward. If the Subscribe request contains a watermark that is not found in the mailbox events table, an ErrorInvalidWatermark error is returned to the client application. This error may occur if the watermark is too old and was removed from the 30 day window of the events table or if the watermark was not ever present in the events table. This can occur, for example, if a watermark is obtained from a different subscription for a mailbox in a different database.