Detailed Vendor Analysis

Hello Experts

If I run the vendor index (S_ALR_87012086) I want to analyse vendors with the following two parameters:

- account group

- reconciliation account

A little example: I want to see all vendors which have account group "Intercompany" and which have not reconciliation account "3000" (Intercompany Account For Vendors). I've choosen the free selection button, I've set the account group, I've excludet the reconciliation account but the result shows wrong vendors in every case.

What is my mistake?