Hi Digo,
You can create any number of RFC to any number of clients in Manged system from solman,
You might be wrong with the procedure for creating RFC. Please update how do you create RFC.
Normally RFC from solman to managed system would be in the format of SM_SYSCLNTXXX_READ, SM_SYSCLNTXXX_TRUSTED, SM_SYSCLNTXXX_LOGIN,
it never with the name of A6C2CF8BA5641ED3A1E8889F09AC6155 , You might be wrong, Please follow demos at http://service.sap.com/rkt-solman
or follow the steps mentioned in solman_setup, you can else update the screens of how you create RFC.
And @ Sriram M and Juan de la Cruz de Arellano Royo, Multiple RFC required for various client specific scenarios in solman, example CHARM which totally client dependent. in such case you need to have RFC from solman to specific client in Managed system.
Thanks
Jansi