R3trans sets a return code that shows whether or not the transport has succeeded. You can view details on transports in the log file. Here are the following return codes:

• 0 : No errors or problems have occurred.

• 4 : Warnings have occurred but they can be ignored.

• 8 : Transport could not be finished completely. Problems occurred with certain objects.

• 12 : Fatal errors have occurred, such as errors while reading or writing a file or unexpected errors within the database interface, in particular database problems.

• 16 : Situations have occurred that should not have.

• Constants in the program are too small
• Not enough available memory
• Internal R3trans error

Other return codes are not set by R3trans itself but point to errors, such as segmentation faults.