CO: Automatic creation of Settlement rule - settlement rule not saved

Hello,

First, We have a customer field in our internal order called 'ZWBS'.

also, I have  customized automatic Creation of settlement rule for internal order by:

1. T-code KSR4 - I have created Strategy called 'C25'.

2. I created Strategy Sequences for Automatic Generation of Settlement Rule called 'ZC25'

with T-code KSR2_ORC.

3.I Assigned the Strategy Sequence To Order Type ZC25.

4. I used User Exit COOM0003 in order to create Settlement rule from ZWBS field.

In KO01, when i go into the settlement rule I can see the 2 lines that the user exit created.

The problem is that when i'm saving the internal order the settlement rules are not saved.

My questions are:

1. Is anyone met this problem?

2. is the user exit work on T-code KO02 also?

thanks for your help.

Best regards,

Lior