Answer / usha

Strictly speaking a user exit is any place within standard
SAP, where SAP have added a mechanism for client specific
code to be executed.

Customer exits are maintained with transaction CMOD. They
are constructed in such a way that all development is in
the customer name range, so no access keys are required.

Answer / venkata ramamohana rao s

in userexists we are working with access key to modify the
program or enhance our new coding. we are write our new
coding in between function and endfunction. here we can add
our new coding at any place in a program


but in custom exists we can't use access key, here we are
using subroutines for add our new coding and what u want
to add our new code that must be add at end of the existing
one but unable to change the existing functionality.

How do you check(find) out the user exists?

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