user exit vs function module exit in sap abap

[former_member1277403]

I am not understanding the difference between these two.

I have one requirement like if so item is tagged with advance receipt, then only it will not all you to delete that line item.

For this I have gone to MV45FZZ program and find userexit_check_xvbap_delete and my code. Can anyone suggest me if I am going into wrong way.

[GK817]

Hi,

You are implementing User Exit, which is a valid way.

FM exits are implemented through SMOD/CMOD and can be identified by CALL CUSTOMER-FUNCTION.

More details:

https://answers.sap.com/questions/4096867/difference-between-customer-exit-and-user-exit.html

Regards

GK

[former_member1716]

Hello Sanjib Ganguly,

Greetings!

Yes implementing USER_EXITS is better in this case. USER-EXITS primarily came into picture for SD Module. Both user exits and Function Exits are features provided by SAP. Considering your current requirement USER_EXITS suits the best. You just need to take care during Upgrade activities.

On a short note on FUNCTION EXITS, they are more encapsulated form of enhancements provided. We cannot implement them as such, we have to wrap them up into a project through predefined enhancements available for them. You can see key words CALL CUSTOMER FUNCTION in any standard programs, these are the external plugins through which your requirement is added.

Hope it helps!

Regards

[former_member1277403]

Thank you.

That means I can write my logic in the userexit "userexit_check_xvbap_for_delete" And make my code as implicit enhancement with in this user exit. I have worked on this way and it's working.

Suggestions please if my approach is right or wrong please.