How to fix the sequence of conditions in PO?

Question

Hi,
I am using calculation schema RM0000, whose part of the condition sequence is like below:
Step     Counter      Condition Type
10     1     RB00
10     2     RC00
10     3     RA00
10     4     RA01
10     5     HB00
10     6     ZB00
10     7     ZC00
10     8     ZA00
10     9     ZA01
10     10     HB01
In my case I have to use ZA01,RA00,ZA00 in my PO. As per the schema above, the sequence should always be RA00 -> ZA00 -> ZA01. But in fact, the sequence is based on the when I enterred the condition.
For example, if I enter ZA01 before RA00, then in PO the sequence is ZA01 -> RA00; if I delete ZA01 and enter ZA01 again, the sequence change to RA00 -> ZA01...
How can I fix the sequence of conditions in PO? Is there anything I forgot to configure?
BTW, it seems that header condtions always lie after item conditions in item condition tab. Is it the standard logic of SAP?
Thanks!
Wesley

Answer 1

Hello,
The sequence of condition types cannot be changed dynamically, it will be picked from what maintained in the pricing procedure in M/08.
The fields, Step - Counter , decides the sequence of the condition types.
Condition counter is Access number of the conditions within a step in the pricing procedure.
Use
During automatic pricing, the system takes into account the sequence specified by the counter.
Regards
Gregory Mathews