User Exit problem for Sales Document

Question:
I have found out that in include MV45AFZZ I can change the code and move a field data to vbap table. by USEREXIT_MOVE_FIELD_TO_VBAP
But for this I need acces key from SAP can anyone suggest me how to make this requriment possible without acces key.
Thanks for your efforts...
Answer:
What do you mean "access key"? Developer's key or the key needed when modifying sap standard? Well you need both do you what you're looking to do. No way around it. It's designed to protect the integrity of SAP's code. Tough.
Answer:
Then for what customer exists are created using CMOD. Please can you explain me why CMOd is used....
Thanks....
Answer:
CMOD is also for enhancments but u don't require any access key . Instead you should be aware of appropriate exit that triggers at your required std transaction...
you don't require any access keys , u probaply require them only when you use the exits which r given in std sap prog.
enjoy sap.
in2sap
Answer:
To to add further comment - SD user exists are maintained in this MV45AFZZ (and all those that share the same development class). There are no SD user exits that are maintainable by using Txn CMOD.
You will need to get the access key for this OSS.
_________________
Rajdeep Kumar
Answer:
To answer the question of why no CMOD support, CMOD has not always been there.
The SAPMV45A userexits are OLD, and SAP has not retrofitted them into CMOD.
That is why you need an access key, they are not implemented as 'customer-functions', they are simply empty code stubs.

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