Dear
If you activate Manual for one condition type in V/08--then system will not take this condition record into sales order even though you maintain in Vk12--That is what the indicator manual will do.
As per you--you removed Manual--then also not coming.
as per you after removing manual---But not kept as mandatory---then it depends on your pricing master data maintainance---if you maintain the condition record--then system will take--otherwise will not.
Hope this helps.
Phanikumar