SOURCE LIST DETERMINATION

Question

Dear all,
          As i got the solution for the problem of "fixing the vendor" i thankful for that.
The problem is again regarding the source list determination as follows--
1) I maitained the inforecord for Material "X" vendors are -- "A" "B" "C"
2) I maitained the source list for Material "X" vendors are -- "A" "B" "C"( here i want the all 3 vendors are to be active for same period like from 01.04.2009 to 31.12.9999)
3) i fix the "A" vendor only.
          As i m going to make a purchase order by different then above three vendor system generates error.Now when i correct the vendor for material i.e i get the vendor list for that material from the vendor tab,i found the 3 vedors for that material A ,B & c.But as i only fix the vendor "A" system only allows the to make po bye vendor "A". no other two vendor allows in that PO. where as those vendors are assign to that..
          in short i want to make all 3 vendors as "fix vendor" for that material for same period.
Hope problem will be clear.
Hoping reply earlier,
Thanking you,
Manish.

Answer 1

dear sir,
           I understand what u mean,but the problem is that,my all 3 vendors are useable for specified time i.e 01.04.2009 to 31.12.2010. At the time being i cant say that ir i cant use any perticualr vendor for perticular time,likeweise follows,
sometimes the vendor "a" provides the rate for steel as 34.00/kg ,the same vendor offers the price 45.0/kg for same month whereas the vendor B" offering the price of steel for 40.00/kg.at that time it will be nothing to think about vendor "A",i will dorectly siwtch over to vendor "B" or "C",now if i have fox the vendor a for time period system should not allows me to capture vendor B" or "C" for purchasing,
Also i cant give any autorisation to user for block or fix the vendir to material or by making changes in source list.
please reply
Manish....