SAP Transport Return Code Status

refer to: http://itsiti.com/sap-transport-return-code-status

RC = 0, successfully imported.
RC = 4, imported ended with warning.
Common issue:
• Generation of programs and screens
• Columns missing and Rows missing.
RC = 8, not imported ended with error
Common issue:
• Syntax error.
• Program generation error.
• Dictionary activation error.
• Method execution error.
RC = 12, import is cancelled.
Common issue:
• Import is canceled due to object missing.
• Objects are not active.
• Program terminated due to job “RDDEXECL” is not working.
RC = 16, import is cancelled.
Common issue:
• Import cancelled due to system down while importing.
• Import cancelled due to user expires while importing
• Import cancelled due to insufficient roles.