ALE IDoc Creation steps with T Codes

INBOUND IDOC

Segment : Create Segements Using WE31
IDoc Type : Create IDoc Type and Assign Segment to IDoc Type Using WE30
Release : Release Segements and IDoc Type using WE31 and WE30 Respectively
Message Type : Create Message Type Using WE81
And Assign IDoc Type to the Message Type Using WE82
Function Modules : Create Function Module Using SE37
Process Code : Create Process Code Using WE42
Characteristics : Maintain characteristics of Inbound Function Modules Using BD51
Relate FM,Msg Type : Assign Function Module to Message type Using WE57
Partner Profile : Create Partner Profile Using WE20
And Assing Message type under Inbound parameters

OUTBOUND IDOC

Segment : Create Segements Using WE31
IDoc Type : Create IDoc Type and Assign Segment to IDoc Type Using WE30
Release : Release Segements and IDoc Type using WE31 and WE30 Respectively
Message Type : Create Message Type Using WE81
And Assign IDoc Type to the Message Type Using WE82
Function Modules : Create Function Module Using SE37
Relate FM,Msg Type : Assign Function Module to Message type Using WE57
Partner Profile : Create Partner Profile Using WE20
And Assing Message type under Outbound parameters
Port : Create/Use Existing Port Using WE21