Go to SNRO (or) SNUM and select object J_1IARE1 required by you and select NUMBER RANGE on top. It will ask for "Series Group". Give the respective plant's series group and click "Change intervals".
Now give some value in the field "No" followed by year and number range and save.
Have you maintained the 'Number Range' number as 01, the Year (2007-if you are maintaining for the Financial Year: 2007-08) for the Object in J_1IARE1 for your Series Group in J1I9 (or SNRO)?. You need to be extremely careful when giving the Number Range Number as 01. Any other number is invalid and you run the risk of the ARE1 number not getting generated.
The J_1IINTNUM is an internal Reference number and is generated for all transactions.
I was also facing the same problem & had posted it to SAP for rectification & the explanation given by them is as following:
Please note that when you create the ARE1 / ARE3 document the number
range object J_1iintnum will be used. This object will be shared by
all the excise transaction so that is why the document numbers are not
continuous. But when you post the ARE document then j_1iare1 & j_1iare3
object will be used which will be continuous. Please note that the
j_1iintnum number range is not the official document number for ARE or
any other excise transaction.
You can see the ARE1 official document number after posting the ARE
document. The ARE1 document can be found in Form no field in the
Document detail tab of the header
Hope the above solve ur query....
Thanks & Regards,