https://blogs.sap.com/2016/07/05/steps-in-idoc-configuration-for-beginners/
https://www.591sap.com/thread-257-1-1.html
http://www.baidusap.com/abap/ale_edi_idoc/2003#5,%20%E6%A0%87%E5%87%86%E5%87%BA%E7%AB%99%E5%A4%84%E7%90%86(standard%20outbound%20processing)
https://www.cnblogs.com/jiangzhengjun/p/4265551.html#_Toc410467204
http://www.baidusap.com/abap/ale_edi_idoc/782
https://blog.csdn.net/Sundam/article/details/84300619
http://www.baidusap.com/abap/ale_edi_idoc/782
https://www.twblogs.net/a/5b7c193e2b71770a43d950b4
