Before attempting to use a pacemaker to regular production, you must have a solid foundation in place. A pacemaker will only work if there is a system to link it to the rest of your production processes. This means that you have to master kanban, pull, and flow first. You will also have to get at least rudimentary standard work in place or the signals could vary wildly.
Once you’ve established the foundation, select your pacemaker. The location will depend upon the degree of configuration you have in your products. The earlier a specific item is designated for a specific customer, the earlier your pacemaker will likely be.