We have an issue with IP's related to ECP system only. All the IP's related to ECP client are getting failed everyday ( as we trigger a process chain which loads data completely to BW ). When we repeat the same failed IP then the load completes successfully. All are delta loads only. There are no stuck TRFC's or IDOC's for your information. No proper error message too as it just says error ocurred in Source system and Caller 09 error message.
Anyone who has experienced similar issue can share your views here.