The workflow is used to notify employees in purchasing of all the changes to order data, which result in purchase order requisitions being changed automatically. Where the purchase requisitions have been changed automatically, the purchase orders must also be changed.

The following changes in the order result from changes to the purchase requisitions:

• The requirement quantity of an external material or external service has been changed.
• The requirement date of an external material or external service has been changed.
• An external material item or an external service operation has been deleted.
• An external service operation has been changed in an internally processed operation.
• The order has been technically completed; that is, the external material or external service is no longer required.
• Purchase orders have already been created.

The employee notified can check the purchase orders and purchase requisitions concerned. They can also change purchase orders manually or create new purchase orders.

If plans are made in an order to procure external material or an external service, a purchase requisition is generated by the system for this. This is processed by the employee responsible from the purchasing department. Then one or more purchase orders are created. It is noted in the order that a purchase order has been created.

If changes in an order occur to the material/services ordered (for example, if dates or quantities change) owing to planning and execution of work, the system automatically amends the purchase requisition.

Since in this case, the existing purchase order must be changed, the person or department responsible is informed automatically through the workflow that the purchase order for the order needs to be processed. The system sends a work item to the integrated inbox of all the people, who are assigned to the task in the system.

It can be processed directly from the inbox.