Validation

[former_member681145]

Hi,

Would i know how it is differencing Validation and user exit?

Regards

Ishikesh

[Former Member · Accepted solution]

Ishikesh,

Validation is basically used to restrict the user to enter incorrect/invalid entries at selection screen.

we generally do it by putting error messages on any incorrect entry. This is also a kind of check....

One major difference i can point out that Validation does NOT require ABAP/4 developement whereas User Exit require it.

[Validation And User Exit|http://sap.ittoolbox.com/groups/technical-functional/sap-acct/the-difference-between-validationsubstitution-and-user-exit-362404?cv=expanded]

Hope this will help.

Thanks,

Raja

[former_member681145 · Accepted solution]

Hi Raja,

Her You have mentioned

"Validation is basically used to restrict the user to enter incorrect/invalid entries at selection screen.

we generally do it by putting error messages on any incorrect entry. This is also a kind of check.... "

But How we can attain same , with z program or some other way--if it is with Z Program , then wt is the exclusive difference in b/w Z PRGRAM AND VALIDATION?

Regards

Ishikesh

[Former Member · Accepted solution]

Ishikesh,

In fact on seeing in a broader way there is not much difference between User exits and Validation. Validation is also an user exit..... These Validation exits are used in the prerequisites and checks. They have either the value 'T' for true or 'F' for false. They are interpreted as a part of the logical statement, like a constant or field comparison. For this type of user exit, you must fill a parameter with the results of your check ('T' for true; 'F' for false).

We can use User exits in validation also. In fact Substitution exits, validation exits these are also a type of user exits.

Read this http://software.feedfury.com/content/28535484-user_exits_in_detail.html

Hope it will help...

Thanks,

Raja