I am getting this error randomly, System.Web.Services.Protocols.SoapException: Auth token is invalid. I checked my token and it is active and it was working fine until today. Expiry date is 03/28/2017. Anyone else having the similar issue. I trying to figure out if it is my application or there are some issues on ebay's end. I am making GetItem call continuously for about 1000 item ID's and sometime I get the error in the beginning and sometimes in the middle. So, I think it is random and seems like it is a problem from ebay's end.