transportation lanes is zero in SNP optimizer

Hi Gurus,

I got the material A at the plant 9002 (external proc) and two source of supply 9000 and 9002 (maintained T-lines, costs maintained).

Wnen I run SNP optimizer(SNP94), it shows in log that

Total number of transportation lanes: 0

and creates purchase requisition without source of supply.

If I manually put down a number, it shows me two source of supply to select.

What is wrong?