User input validation - User exit

[Former Member]

Hi,

I want to validate the user input before saving it. I have created a function of type EXIT and added in the planning folder as funtion attribute before saving. I need to know what needs to be passed to the function module to validate the field. Please advise.

[Former Member]

There are a number of ways to validate user input, the easiest being by having the allowed range specified in the level (with an exit variable if the range is dynamic). With a characteristic relation, you can also validate value (which can also take a user exit..)... What sort of validation are you looking to do?

[Former Member]

If you choose to use an exit function, here is a quick example of exit function validation:

FUNCTION Z_CHECK_DEBIT_CREDIT.

*

• Validate total amount equals debit + credit

*

DATA: ls_mesg TYPE upc_ys_mesg.

Data: L_DC_TOTAL TYPE P.

FIELD-SYMBOLS: <ls_data> TYPE ANY,

<cl_AMOUNT> TYPE ANY,

<cl_debit> TYPE ANY,

<cl_credit> TYPE ANY,

<ch_struct> TYPE ANY,

<kf_struct> TYPE ANY.

• <ls_data> and therefore xs_data contains two structures

• 1. S_CHAS : Characteristics

• 2. S_KYFS : key figures

LOOP AT xth_data ASSIGNING <ls_data>.

• now <ls_data> points to a line of xth_data and can

• be used to reference each characteristic and/or

• keyfigure contained within.

• choose second structure which contains the keyfigures

*if you were working with a characeristic, you would *need to assign the component 'S_CHAS'.

ASSIGN COMPONENT 'S_KYFS' OF STRUCTURE xs_data TO <kf_struct>.

*Get the total debit amount

*REMEMBER TO CAPITALIZE all infoObject names!

ASSIGN COMPONENT '0DEBIT' OF STRUCTURE <kf_struct> TO <cl_debit>.

*Get the total credit amount

ASSIGN COMPONENT '0CREDIT' OF STRUCTURE <kf_struct> TO <cl_credit>.

*Get the total amount

ASSIGN COMPONENT '0AMOUNT' OF STRUCTURE <kf_struct> TO <cl_amount>.

L_DC_TOTAL = <cl_debit> + <cl_credit>.

IF L_DC_TOTAL NE <cl_amount>.

*Output message to the end user

ls_mesg-msgty = 'E'.

ls_mesg-msgid = 'upf'.

ls_mesg-msgno = '001'.

ls_mesg-msgv1 =

'Total not equal to debit minus credit!'.

APPEND ls_mesg TO et_mesg.

ENDIF.

ENDLOOP.

ENDFUNCTION.

Message was edited by: Cynara Kidwell

Message was edited by: Cynara Kidwell

[Former Member]

Thanks for the input. I need to validate the date characteristic entered by the user and the date field is dynamic,the user can input any date and I need to check if the date is less the system date, then they can't plan with the date. So I have created an EXIT function n TCODE: BPS0, and moved that in the plannin folder(UPSPM) and changed the function attributes to "Execute function when Saving". I want to know what paramters I need to add on the EXIT function in TCODE: BPS0.