LDAP as the UME data source - ABAP data source automatically configured

Hi,

I have installed SAP NetWeaver 7.0 SR2 + MaxDB with AS-ABAP, AS-JAVA, BI-Java, DI, EP, EPC on Linux SLE9 on IBM on Power. The server is only use as a Portal.

I should like to configure Microsoft ADS (LDAP) as the UME data source. After the installation I start the server and the portal is running well. Now I would like to change the UME data source to LDAP but the ABAP data source is already configure.

Why is the ABAP data source automatically configure? It´s not possible to change the ABAP data source. 😔

In the SAP Setup (sapinst) was no option to choose the UME data source.

On witch point and time can I configure LDAP as the UME data source?

Thank you very much for your help!