The Integration Service could not open the target output file for the session. This error can occur if the target output file does not exist, the path to the file is invalid, the Informatica Services account or the operating system user in the operating system profile does not have permission to open the file, or another process is using the file. As a result, the session failed.
Verify that the target output file exists, grant read and write permissions on the file to the Informatica Services account or the operating system user in the operating system profile, and verify that the file is not currently in use by another process. If the session is enabled for recovery, recover the session. Otherwise, run the session again.