Introducing Overhead Maintenance (4WM)

Objectives
After completing this lesson, you will be able to:

After completing this lesson, you will be able to:

  • Explain the overhead maintenance (4WM) process

Overhead Maintenance (4WM)

Overview – Overhead Maintenance (4WM)

Note
Please mind that the terms Overhead Maintenance (4WM) and Operational and Overhead Maintenance (WM) for this scope item are used synonymously.

Overhead maintenance allows you to record activities that are not part of typical maintenance tasks such as training, development, documentation, and so on.

Operational maintenance allows you to record routine maintenance activities such as greasing, which is done by the maintenance or production team.

If you need to record activity that is not reactive, proactive, or improvement in nature, you can use overhead or operational maintenance.

Overhead and operational orders support all the phases of the business process like planning, approval, preparation, scheduling, execution, post execution, and completion.

Business Benefits

  • Record and track activities that aren't part of traditional maintenance processes
  • Save costs
  • Keep an asset productive for longer

Key Process Flows

Overhead Maintenance

  • Create an overhead order
  • Plan an overhead order
  • Submit an overhead order for approval
  • Release an overhead order for preparation
  • Review maintenance backlog for readiness
  • Schedule an overhead order
  • Perform time confirmation of pre and main maintenance order operations
  • Perform time confirmation of post maintenance order operations
  • Technically Complete an overhead order

Operational Maintenance

  • Create an operational order
  • Plan an operational order
  • Submit an operational order for approval
  • Release an operational order for preparation
  • Review maintenance backlog
  • Schedule an operational order
  • Perform time confirmation of pre and main order operations
  • Perform time confirmation of post maintenance order operations
  • Technically Complete an operational order

Applicable Process Steps

The following table lists the SAP Fiori apps and business roles that are used in the Overhead Maintenance (4WM) process steps:

Process StepBusiness RoleTransaction/App

Create and Plan Maintenance Order

After a maintenance request is approved, we are in Planning phase of this process. The approved Maintenance Request will be called Maintenance Notification. This process step shows how to convert a maintenance notification into a maintenance order and, provides details about planning the resources for the order.

Order processing helps you to plan maintenance tasks in greater detail. You decide the tasks to be performed and what components (materials) are needed, and so on.

Maintenance PlannerManage Maintenance Notifications and Orders (F4604)

Submit Order for Approval

After you have planned resources for the maintenance order, it can be submitted for approval to the supervisor. This will set the status of the maintenance order to Ready to Prepare subphase.

Maintenance PlannerManage Maintenance Notifications and Orders (F4604)

Approve Maintenance Order (Optional)

This process step shows you how to approve a maintenance order from My Inbox (F0862) app.

As per agent determined in the workflow.My Inbox (F0862)

Review and Release Maintenance Order

We are in Ready to Prepare subphase. In this process step, you can review a list of approved maintenance orders and release them for Preparation phase.

Maintenance PlannerManage Maintenance Notifications and Orders (F4604)

Maintenance Backlog Overview

The maintenance order is in Preparation phase now. Maintenance Backlog Overview screen will allow you to view various cards. You can check Maintenance Backlog Card which shows backlog of maintenance orders based on phase or buckets.

Maintenance PlannerMaintenance Backlog Overview (F5105)

Convert Purchase Requisitions to Purchase Orders

This process step shows you how to assign purchase requisitions to a source of supply and to convert assigned source purchase requisitions to purchase orders.

PurchaserManage Purchase Requisitions (F1048)

Goods Receipt for Purchase Order

Here you post the goods receipt for the purchase order.

Warehouse ClerkPost Goods Receipt for Purchasing Document (F0843)

Post Goods Issue

You are now in Execution phase of the process. Here you post the goods issue from storage location.

Warehouse ClerkPost Goods Movement (MIGO)

Submit Order for Scheduling

Once Preparation is done and backlog is reviewed, the order can be set for Ready to Schedule to start Scheduling phase.

Maintenance PlannerFind Maintenance Order (F2175)

Schedule Maintenance Order and Submit it for Execution

In this step, you can schedule the order operations and set the operations ready for execution.

Maintenance PlannerFind Maintenance Order (F2175)

Execute Maintenance Order

In Execution phase, technician will execute Pre and Main operations.

Production Operator - Discrete Manufacturing or Maintenance TechnicianPerform Maintenance Jobs (F5104A)

Main Work Completed

After execution of Pre and Main work by the Technician, the Maintenance Supervisor will review the work and change the status from Main Work Completed to Post Execution phase.

Maintenance SupervisorFind Maintenance Order (F2175)

Maintain Service Entry Sheet

In this activity, you report the performed services in the service entry sheet.

PurchaserManage Service Entry Sheets - Lean Services (F2027)

Execute Post Work Operations

In this process step, the technician will execute post operations activities (if any) and also update the malfunction details and failure data.

Production Operator - Discrete Manufacturing or Maintenance TechnicianPerform Maintenance Jobs (F5104A)

Review Maintenance Cost

Maintenance planner can review the cost of maintenance orders.

Maintenance PlannerMaintenance Order Costs (F4603)

Technically Complete Maintenance Order

The maintenance notification is completed and the maintenance order is technically completed after the required maintenance work has been performed.

The technical completion reduces all the purchase requisitions, open reservations, and capacities still outstanding for the maintenance order.

Nevertheless, the order can continue to receive costs, for example, through invoice receipts for delivered and used materials. However it is blocked for all changes in the processing.

The order settlement transfers the costs incurred that were temporarily collected for the maintenance order, to the recipient, for example, to the cost center for the maintained object. This process step shows you how to technically complete a maintenance order.

Maintenance PlannerFind Maintenance Order (F2175)

Create Supplier Invoice with PO/GR Relation

In this process step you create the invoice with reference to the purchase order.

Accounts Payable AccountantCreate Supplier Invoice - Advanced (MIRO)

Release Supplier Invoice

In this process step you release a blocked supplier invoice.

Accounts Payable AccountantSupplier Invoices List (Version 2) (F1060A)

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