Docno generation in cv01n with concatenation of 3 fields in addtiaonal tab

Question

I am struck in my program . I got a requirement for doc number generation automatically when user gives input in cv01n. there is a standard program mcdokznr which i copied and modified as per requirement . but in t-code cv01n second screen ,second tab we have additional details (characteristic values) functional consultant created 3 fields i need to concatenate these 3 fields along with docno . how should i acheieve .
i also tried badi coiped standard badi DOCUMENT_NUMBER01 into ZDOCUMENT_NUMBER0 . in method i wrote
method IF_EX_DOCUMENT_NUMBER01~DOCNUMBER_CHECK.
DATA : tdwa TYPE tdwa.
DATA: subrc TYPE inri-returncode,
number LIKE draw-doknr,
number1 LIKE draw-doknr,
new_number LIKE draw-doknr,
new_num TYPE string,
lv_docnum1 TYPE string.
CHECK sy-uname = 'MSRO'.
CHECK tcode = 'CV01'.
CHECK draw-doknr = 'TRD' OR draw-doknr = 'TST'.
CALL FUNCTION 'CV200_DB_TDWA_SELECT'
EXPORTING
pf_dokar = draw-dokar
IMPORTING
psx_tdwa = tdwa
EXCEPTIONS
not_found = 1
OTHERS = 2.
IF sy-subrc <> 0.
Implement suitable error handling here
ELSE.
if draw-dokar EQ 'TRD'.
CALL FUNCTION 'NUMBER_GET_NEXT'
EXPORTING
nr_range_nr = tdwa-inumnr
object = 'DOKUMENT'
IMPORTING
number = number
returncode = subrc
EXCEPTIONS
interval_not_found = 4
number_range_not_intern = 8
object_not_found = 12
quantity_is_0 = 16.
CONCATENATE 'ABC' '-' number INTO new_num. " IN THIS LINE HOW I NEED TO CONCATENATE THOSE 3 CHARACTERIC VALUES CREATED IN cvo1n additional data?
WRITE new_num TO number.
CONDENSE number NO-GAPS.
ENDIF.
*endif.
ENDMETHOD.

Answer 1

dear ppl of otn!!
i need to make this concatenation because i have more tables except the subdivisions i have got each subdiv_indicator table and i have made the relationship of those indicators with the subdivisions and to recognize them properly i have chosen to concatenate charachters .just for the ease of making thing recognizable plus plz also tell me that how to refressh a sequence baecause when we delete a record form a table the sequence gets disturbed and last number still remains thatof the deleted record . how to solve this problem plz suggest.
as we know already that in min_subdiv table we have got
SUBDIV-ID           SUBDIV_NAME min_id
E001               EXP ON UNIVERSITIES 0001
E002               EXP ON PRIMARY SCHOOLS     0001     
E003               EXP ON SECONDARY SCHOOLS 0001
here is small picture of the data of min_subdiv_indicators for education subdivisions
subdiv_id indicator_id inidcator_name
E001 EI01 No. of primary education inst.
E002 EI02 No.of sec.edu inst.
E003 EI03 No.of professional college
E003 EI04 Literacy Rate