This module traces material based on parent item routing. Routings define where component items to be traced are consumed and where the WIP material to trace is produced. WLT also traces material based on parent item BOM codes when the component item is part of the BOM. Tracing does not occur on an item-per-item basis.

You should begin setup by first considering and listing which parent items need to have component and WIP material traced. From this list, derive the routings and BOMs used to manufacture the parent items. You need these routing and BOM codes to set up this module.

You should also note whether any special tracing requirements exist, such as operations in a routing where tracing should begin, or specific BOMs for which component items should not be traced. You should have this information prepared before you begin to set up WLT.

Knowing exactly which routings and BOMs consume components and create the WIP material you need to trace lets you configure the WIP Lot Trace module effectively. This is because you can configure the module to trace components and WIP for all routings and BOMs, with the exception of only a few, or you can configure it to trace components and WIP for only a few routings and BOMs.