Error:No service for system SAPEC6 client 100 in the integration directory

Hi Experts,

We are sending an IDoc from SAPECC6 to PI 7.0 Server, We have done all the ALE, SLD, Integration Directory Settings.

IDoc is sent successfully with status 03 but it is getting stuck in SM58 TCode of ECC6 with error "No service for system SAPEC6 client 100 in the integration directory " and also same error in SM21 of PI 7.0 Server (IDOC_ADAPTER 601).

We have also applied the SAP NOTE 940313.

Kindly advice.

Thanks in advance,

Elizabeth.