Credit management with multiple rules

Hi team

On the Preparatory Activity and Migration of Customizing for Credit Management -- Define Settings for Credit Management Migration we person conscionable 1 Rule for migration, what happened if we person much than 1 rule? however tin we migrate customers to BP Credit relation with close rules if we tin lone prime 1 connected the prep steps.

What should I request to instrumentality attraction to execute migration for customers utilizing antithetic rules 

Regards