Document Numbering returns error 3535-3

I am running 2007a and am setting up document numbering for three series under sales orders

what first# next# final#

series 1 1 43,000 999,999

series2 1,000,000 1,000,031 1,999,999

series 3 2,000,000 2,000,000 2,999,999

I then click ok

then I click update

I receive the following error: invalid series

when I attempt to set up multiple series for purchase orders I get an error:

Invalid Series next number message [3535-3]