free goods

hi all

i want to create the condition record for free goods with the combination PLANT & MATERIAL.

when i am trying to maintain it is not calculating free goods

based on the above combination, i could see the following message in analysis of the sales order CONDITION IGNORED (REQUIREMENT 055 NOT FULFILED).

my question is when plant was given in the field catelog why cant i use it along with material to maintain condition record for free goods?

regards

rag