Start Level 1 Node: Purchase Order CollaborationPurchase Order CollaborationEnd Level 1 Node: Purchase Order Collaboration
   Start Level 2 Node: Master Data and Settings for Purchase OrdersMaster Data and Settings for Purchase OrdersEnd Level 2 Node: Master Data and Settings for Purchase Orders
   Start Level 2 Node: Integration of Purchase Order Collaboration with SAP ERPIntegration of Purchase Order Collaboration with SAP ERPEnd Level 2 Node: Integration of Purchase Order Collaboration with SAP ERP
   Start Level 2 Node: XML Messages for Purchase Order CollaborationXML Messages for Purchase Order CollaborationEnd Level 2 Node: XML Messages for Purchase Order Collaboration
   Start Level 2 Node: Purchase OrderPurchase OrderEnd Level 2 Node: Purchase Order
      Start Level 3 Node: Purchase Order StatusPurchase Order StatusEnd Level 3 Node: Purchase Order Status
         Start Level 4 Node: Update of the Confirmation Status of a PO ItemUpdate of the Confirmation Status of a PO ItemEnd Level 4 Node: Update of the Confirmation Status of a PO Item
      Start Level 3 Node: Editing Confirmation Data in SAP SNC ManuallyEditing Confirmation Data in SAP SNC ManuallyEnd Level 3 Node: Editing Confirmation Data in SAP SNC Manually
      Start Level 3 Node: Sending Confirmations from the Supplier System to SAP SNCSending Confirmations from the Supplier System to SAP SNCEnd Level 3 Node: Sending Confirmations from the Supplier System to SAP SNC
      Start Level 3 Node: Price ConfirmationPrice ConfirmationEnd Level 3 Node: Price Confirmation
      Start Level 3 Node: Rejection of a Purchase Order or Purchase Order ItemRejection of a Purchase Order or Purchase Order ItemEnd Level 3 Node: Rejection of a Purchase Order or Purchase Order Item
      Start Level 3 Node: Update of GR Data in the Purchase OrderUpdate of GR Data in the Purchase OrderEnd Level 3 Node: Update of GR Data in the Purchase Order
      Start Level 3 Node: Processing of Changed Purchase Order ItemsProcessing of Changed Purchase Order ItemsEnd Level 3 Node: Processing of Changed Purchase Order Items
      Start Level 3 Node: Closing Purchase Orders and Replenishment OrdersClosing Purchase Orders and Replenishment OrdersEnd Level 3 Node: Closing Purchase Orders and Replenishment Orders
      Start Level 3 Node: Deleting Closed Purchase Orders and Replenishment OrdersDeleting Closed Purchase Orders and Replenishment OrdersEnd Level 3 Node: Deleting Closed Purchase Orders and Replenishment Orders
      Start Level 3 Node: Address DeterminationAddress DeterminationEnd Level 3 Node: Address Determination
      Start Level 3 Node: Determination of Delivery Tolerances for Purchase Order ItemsDetermination of Delivery Tolerances for Purchase Order ItemsEnd Level 3 Node: Determination of Delivery Tolerances for Purchase Order Items
      Start Level 3 Node: Creation of ASNs for a Purchase Order ItemCreation of ASNs for a Purchase Order ItemEnd Level 3 Node: Creation of ASNs for a Purchase Order Item
   Start Level 2 Node: Web Screens for Purchase OrdersWeb Screens for Purchase OrdersEnd Level 2 Node: Web Screens for Purchase Orders
      Start Level 3 Node: Purchase Order WorklistPurchase Order WorklistEnd Level 3 Node: Purchase Order Worklist
         Start Level 4 Node: Processing Items in the PO WorklistProcessing Items in the PO WorklistEnd Level 4 Node: Processing Items in the PO Worklist
         Start Level 4 Node: Two-Step Confirmation of Purchase Order ItemsTwo-Step Confirmation of Purchase Order ItemsEnd Level 4 Node: Two-Step Confirmation of Purchase Order Items
      Start Level 3 Node: Data on the Web Screens for Purchase OrdersData on the Web Screens for Purchase OrdersEnd Level 3 Node: Data on the Web Screens for Purchase Orders
   Start Level 2 Node: Purchase Order Collaboration: Standard ProcessPurchase Order Collaboration: Standard ProcessEnd Level 2 Node: Purchase Order Collaboration: Standard Process
   Start Level 2 Node: Purchase Order Collaboration with Approval ProcessPurchase Order Collaboration with Approval ProcessEnd Level 2 Node: Purchase Order Collaboration with Approval Process
      Start Level 3 Node: Procedures for Automatic ApprovalProcedures for Automatic ApprovalEnd Level 3 Node: Procedures for Automatic Approval
         Start Level 4 Node: Determination of Deviations (Without Tolerances)Determination of Deviations (Without Tolerances)End Level 4 Node: Determination of Deviations (Without Tolerances)
      Start Level 3 Node: Manual ApprovalManual ApprovalEnd Level 3 Node: Manual Approval
      Start Level 3 Node: Approval StatusApproval StatusEnd Level 3 Node: Approval Status
      Start Level 3 Node: Change Distribution StatusChange Distribution StatusEnd Level 3 Node: Change Distribution Status
   Start Level 2 Node: Validation in Purchase Order CollaborationValidation in Purchase Order CollaborationEnd Level 2 Node: Validation in Purchase Order Collaboration
      Start Level 3 Node: Validation Checks for Purchase OrdersValidation Checks for Purchase OrdersEnd Level 3 Node: Validation Checks for Purchase Orders
   Start Level 2 Node: Purchase Order AlertsPurchase Order AlertsEnd Level 2 Node: Purchase Order Alerts
   Start Level 2 Node: Examples for Purchase Order CollaborationExamples for Purchase Order CollaborationEnd Level 2 Node: Examples for Purchase Order Collaboration
      Start Level 3 Node: Example: Message Flow for Purchase Order ProcessingExample: Message Flow for Purchase Order ProcessingEnd Level 3 Node: Example: Message Flow for Purchase Order Processing
         Start Level 4 Node: Business Data Flow: Purchase Order ProcessingBusiness Data Flow: Purchase Order ProcessingEnd Level 4 Node: Business Data Flow: Purchase Order Processing
      Start Level 3 Node: Example: Message Flow for Contract Manufacturing ProcurementExample: Message Flow for Contract Manufacturing ProcurementEnd Level 3 Node: Example: Message Flow for Contract Manufacturing Procurement
         Start Level 4 Node: Business Data Flow: Contract Manufacturing ProcurementBusiness Data Flow: Contract Manufacturing ProcurementEnd Level 4 Node: Business Data Flow: Contract Manufacturing Procurement
      Start Level 3 Node: Example: PO Collaboration in Service Parts ManagementExample: PO Collaboration in Service Parts ManagementEnd Level 3 Node: Example: PO Collaboration in Service Parts Management
   Start Level 2 Node: Special Topics in Purchase Order CollaborationSpecial Topics in Purchase Order CollaborationEnd Level 2 Node: Special Topics in Purchase Order Collaboration
      Start Level 3 Node: Manufacturer Part Number in Purchase Order CollaborationManufacturer Part Number in Purchase Order CollaborationEnd Level 3 Node: Manufacturer Part Number in Purchase Order Collaboration
      Start Level 3 Node: Batches and Configuration in Purchase Order CollaborationBatches and Configuration in Purchase Order CollaborationEnd Level 3 Node: Batches and Configuration in Purchase Order Collaboration