Could you please tell me how to maintain vendor subrange in the vendor master.
You can enter a vendors sub-ranges in the vendor master record.
To do so, choose Sub-ranges on the Purchasing Data screen. You can create sub-ranges in different languages.
If the Sub-ranges button does not appear, choose Extras  Addl. purchasing data, and select Allow data retention at VSR level.
You can maintain different purchasing data and partners for vendor sub-ranges in the vendor master record (e.g. terms of payment or Incoterms that vary from those defined at purchasing organization level).
When you enter different data for a VSR that does not yet exist, the latter is created automatically.
Hope it wud have answered ur question