Assignment of Material Components 

Use

You can assign the following material components to the operations in maintenance task lists.

For more information on bills of material and BOM items see What is a Bill of Material?.

You can assign several materials to one operation and one material to several operations. You cannot assign any material components to sub-operations.

The system copies the material components assigned to the task list to the maintenance order once the task list is exploded in the order. For more information on maintenance orders see Work Scheduling with Maintenance Task Lists.

Prerequisites

You can assign material components to all three categories of maintenance task lists, that is, general maintenance task lists, task lists for functional locations and equipment task lists.

The prerequisites for assigning material components differ from one maintenance task list category to the next.

Prerequisites for General Maintenance Task Lists

Assignment of material components to a general maintenance task list is controlled by the assembly assigned in the task list header. To assign material components to your general task list, you must first enter an assembly in the task list header.

In the Plan overview use the menu bar sequence Task list header ® General view.

In the Allocation data section of the screen, you see the entry field for the assembly. You can enter an assembly here. Only once you have made the entry, can you assign material components from the bill of material in the header assembly using bill of material explosion. However, you can also assign stock items that are not contained in the bill of material.

If you require a higher level of detail, you can split up the header assembly by assigning an assembly from a lower hierarchical position to an operation.

You cannot change the assembly in the task list header after you have assigned material components to the task list.

Prerequisites for Equipment and Functional Location Task Lists

The assembly assigned in the header of an equipment or functional location task list does not have as much significance as in the general task list. It purely provides more detail, similar to the assembly entry in the individual operations of a general task list.

The material components you want to assign to an equipment or functional location task list do not have to be in the bill of material for the piece of equipment or functional location when you assign them. You can also allocate a stock item.

If a bill of material exists for the equipment or functional location task list, and you assign a stock item that is not contained in the bill of material, the system produces a pool of materials assigned to the object bill of material. When you assign a further material at a later date, the system adds this to the pool.

The system does not add the material to the bill of material. The original bill of material remains untouched, so that it can be accessed again and again. This is important because the assignment of an extra material may be an exception for a special maintenance case and the bill of material for the piece of equipment or functional location would be falsified if the extra material was added.

Prerequisites for all Three Maintenance Task List Types

To enable the assignment of extra materials maintenance task lists, the system administrator must specify bill of material usage for bills of material relevant to maintenance (for example, usage 4 in the standard System) in the Customizing function for maintenance task lists.

You may not change the assigned usage as long as free material assignments exist. You may lose existing material assignments if you do this.