how to understand logic to write FS

[former_member584050]

Dear professionals,

could you please tell me how to understand logic to write fs

i know all table names but while writing fs i am facing problem.

[od_manikandan]

Hai ,

In Functional specification you can list

1. General Information

2. Business requirement - Objective, users

3. Business process  data flow diagram

4. Input screen and Output

     In case of enhancement when it should validate, display warning / error message or update any data.

     In report , selection screen Output screen column and logic to Fetch column value from selection screen.

     Like Customer: _________  Logic can be pass selection screen customer Number to KNA1 - KUNNR and fetch & display NAME1.

5. Existing program / Include for the program.

Regards,

OD

[former_member584050]

Dear Manikandan,

Thanks ton for your reply

One of my colleague helped me to write fs regarding one problem but when i enter VBAK in SE16 i dint find any field with name AUDAT.

i am posting that FS which we have written pls find

If  any customer if he is returning  the good within 6 months from the date of invoice then system should Inactive the sales tax condition type in return order .

Tcode : va01
User exist: userexist_field_modification
programe: LV69AFZZ

LOGIC:
take  VBAK – AUDAT
TAKE VBAK – VGBEL
PASS VBAK VGBEL to VBRK VBELN
TAKE VBRK – FKDAT
IF(VBAK – ERDAT ) –(VBRK – FKDAT) > 180 days
THEN MAKE KOMV-KINAK = x inactive