Error During MC75 :No data maintained for material 18 plant 1000 in transfe

Greetings..

i had created one PRoduct group with material type PROD as material 16. Under this group i asigned the two material as material 18 and material 20 with proportion of 50 % each .

Now i created rought cut plan in MC81 with active version A00 for one year .

When transfering Product group to plan in MC75 i getting error as

"No data maintained for material 18 plant 1000 in transfer period"

Input in T code MC75

Product Group 16

plant : 1000

version :A00

Trasnfer Strategyy : Prod plan for mat or PG member as propotion

Planning Date : today form today

tick invisible transfer

version GP

Active No tick

plase guide me from intial stage whre is the Seting missing ..is thre customization setting i need to do ??