Multipe number range for indonesia tax invoice no.

Question

Hi All,
I have one question to confirm with you all:
Our indonesia office need to print out tax invoice when billing document is created.
The format is TTS.BBB-YY.NNNNNNNN , and only TTS is fixed, the other 13 digits changes.
And we can only get one number range from tax office for almost one month's usage, which means we can not maintain the number range for one whole year in one time.
Question 1:  How to maintain mulitple of number ranges for one year:
I'm thinking if we can maintain different number  in table "V_OFF_NUM_ID"
2014/01/01 – 2014/12/31  900    ID0114  01
2014/01/01 – 2014/12/31  901    ID0114  03
2014/01/01 – 2014/12/31  902    ID0114  04
2014/01/01 – 2014/12/31  903    ID0114  05
2014/01/01 – 2014/12/31  904    ID0114  06 
But the "code 2" is same sometimes, so I have to do so
2014/01/01 – 2014/12/31  900    ID0114  01
2014/01/01 – 2014/12/31  901    ID0114  03
2014/03/28 – 2014/12/31  901    ID0114  04
2014/01/01 – 2014/12/31  903    ID0114  05
2014/01/01 – 2014/12/31  904    ID0114  06 
But if so, I don't know when the billing date is after 2014/03/28, and the number "03" is not used up, system will pick number range of 04 or 03?
Question 2:
The revision billing document after reversal must have the same tax invoice no. with the "original billing" & reversal billing"
The SAP standard use new tax invoice no.
How to realize it?
Question 3:
YY is year and defaulted from billing date?
Thanks and best regards
Cathy

Answer 1

You are correct that this is statutory requirement, and SAP deliver the solution, you can refer to note
1033737 - Indonesia: Tax Invoice & VAT Reporting 1107 .
However, from 04/2014, the requirement changes
TTS.BBB-YY.NNNNNNNN
Before: Only NNNNNNNN changes and SAP suggest using one number range
Now: BBB-YY.NNNNNNNN  changes, and there are quite a few number range per each year.
Can not get one number range for one whole year.
Therefore, I raised my question as above. However, I think I have answer to my question, just I'm looking for one more perfect solution if there is:
1> The answer for 1st question
When the "code 2" is same sometimes, I will maintain as below
2014/01/01 – 2014/12/31  900    ID0114  01
2014/01/01 – 2014/12/31  901    ID0114  03
2014/03/28 – 2014/12/31  901    ID0114  04
2014/01/01 – 2014/12/31  903    ID0114  05
2014/01/01 – 2014/12/31  904    ID0114  06 
By testing, only if the number of 03 is used up even though the billing date is 2014/04/01, the number 04 will be used, so should be okay.
2> The answer for 2nd question
The revision billing document after reversal must have the same tax invoice no. with the "original billing" & reversal billing"
The SAP standard use new tax invoice no
Since there are only 3-4 reversal per year, so user can realize it by changing the "current number" in J1AB
You mentioned it in
http://scn.sap.com/thread/3519329
but I did not try until I'm sure it will work
3> YY
I think it's should be from billing date.