Initial Phase of Mass Replacement of Work Centers 
Prerequisites
You can carry out mass replacement of work centers
The rest of this topic only describes the start of mass replacement. For more details refer to the R/3 Library Routings by choosing Mass changes and where-used lists.
Procedure
Starting from the Work centers area menu
In the Work centers area menu choose Work center ® Replace.
The Replace Work Center: Selection screen appears.
Starting from the Routings area menu
In the Routings area menu choose Extras ® Mass Replace ® Work centers.
The Replace Work Center: Selection screen appears.