Error in Process code creation

Question

Hi All,
I need to create a process code and i need to attach  a custom function module for that process code.
So i have  created custom FM.
afterward in WE42 ,
I gave custom process code name ,description and FM .
when i tried to save the same its giving following message.
For entry, access 'Function module for ALE-EDI inbound processing'
when i tried to give some entries its not accepting...
Please provide me the steps for process code creation.
Reg,
Hem.

Answer 1

hi
good
Definition
Another name for a specific process, for example function module or workflow. IDocs are read or written in this process.
Use
In the partner profiles, the processing is never addressed directly but rather always using a process code. You can therefore replace an old process with a new one for any number of partners by assigning the existing process code to the new process.
Two types of process code are used in conjunction with the partner profiles:
1) Outbound Process Code - if you are using outbound processing under Message Control, the IDoc is generated in the IDoc Interface. The process code names the relevant function module.
2)Inbound Process Code - names the function module or workflow which reads the IDoc data and transfers the data to the application document.
There are process codes for exception handling:
1) System Process Code - names the workflow which is triggered in inbound or outbound processing when an exception occurs.
2) Status Process Code - names the exception workflow which is triggered when an incorrect status is returned by the external system.
These two types are configured centrally and not on a partner-specific basis and therefore do not have to be maintained when a new process is defined. They were introduced for the sake of completeness, so that each process in the IDoc Interface is addressed using a process code.
reward point if helpful.
thanks
mrutyun^