We have three servers CI (central Instance),APP1 (Application server1) and APP2 (Application server2).
Whenever user creates IDOC in SAP, it is use to go /usr/sap/invoice/ of CI. But if we create IDOC in APP1 and APP2, some times it is going to CI and some times it is not going to CI.
Actually all the IDOC's will trigger to customer from CI only (OS script is written like that).
/usr/sap/invoice/ directory available in all three system. As per our analyzation there was some permission issue in APP1 and APP2 for /usr/sap/invoice/ directory.
Kindly please let us know what kind of permission need to given for /usr/sap/invoice in APP1 and APP2 to automatically transfer IDOC's to CI /usr/sap/invoice/.