Condition Types

Hello Guys,

In Pricing Procedure there are many Condition Types

Some are Header Condition Types and Some are Item Conditions.

There are some Condition Types which are both at Header and Item

but they still dont have access sequence.

There are 2 condition types EDI1 and EDI2 which are Item Conditions but still they dont have access Sequence.

Please can you exlpain me why is it so?.

Regards,

Farhan.