This setting is used only when the EnableTimestamp Web.config setting is set to true. The TimestampTimeLimit setting specifies the number of minutes OnBase Patient Window URLs remain valid, based on the timestamp query string parameter.
If the UTC-based timestamp in the query string is older than the number of minutes specified for the TimestampTimeLimit, then the URL has expired. If a user attempts to access OnBase Patient Window with an expired URL, the user is presented with an error.