Setting input mask on particular field on standard SAP screens

[samnovice_new]

Hi,

I am trying to discover and learn more about concept of setting "input mask" on particular field on standard SAP screen(s).

For example, I plan to setup custom mask for field UNSEZ (Our reference) for program SAPMM06E (ME31K Tcode - header data). Please see screenshot bellow:

https://s15.postimg.io/ih6zqgukr/example.jpg

Cerrently, by SAP default, in that field is possible to add almost ANY value without any input mask which *doesn't* makes any obligation for end-user to enter data in specific format. In my case, custom format for input mask would be "XXX-13-XYYY" where X represents obligatory number which is required, and Y represents number which is not required.

In order to find concept how to achieve this result, I done some google research but after a while, I have am confused should I try to update some ABAP code (via SE80/SE38 or similar for program SAPMM06E), should I use some Field exit (link https://scn.sap.com/thread/814770) or something else?

Any help is appreciated and many thanks in advance!

Sam

[Juwin]

Field exit is a way to do it. But, there are plenty of user exits and BADIs in this program, which you may use for validating the field - which I think is a better solution.

Thanks,

Juwin

[samnovice_new]

Hi Juwin,

thank you very much for helpful suggestion!

Since I plan to use this first time, and I wasn't successful using google search, can you please recommend me some tutorial for setting input mask on some field using user exits and BADIs?

Thank you.
Sam

[samnovice_new]

Any suggestion is welcome;)

With kindest regards.
Sam

[Former Member]

Dear Samnovice,

May be you can use BADI ME_CHECK_OA for validating your input data.

Regards,

Yance