Hi Krishna Kumar,
It works like this:
1. When the characteristic 0TCAIPROV is on an Analysis Authorization, and when you have 0COMP_CODE on the "same" AA, the check takes place for AND condition on the values of the 0COMP_CODE on the "same" AA. It "will not" look for 0COMP_CODE in rest of the AAs.
2. If you want to merge the characteristic values from other AAs, leave your 0TCAIPROV on one AA(lets say AA1) and create another AA with 0COMP_CODE values mentioned(lets say AA2) - make sure the AA with 0COMP_CODE doesn't have 0TCAIPROV on it(on AA2) and it should work good.
Try out and let me know.
Regards,
Pranaam