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Purchase Requisition Approval process diagram

This is a worked example. Wavelength built the diagram below from the description on this page. Nobody drew it by hand.

What was said

The requester submits a purchase requisition. The manager reviews it and decides whether to approve. If the manager approves, it goes to procurement. Procurement checks if the budget is available. If the budget is there, procurement creates a PO in the ERP. If the budget is not there, finance reviews it for a reallocation. Once the PO is created, procurement sends it to the vendor and the process is complete.

The diagram

G n1 Requester n2 Submit Requisition n1->n2 submits n3 Manager n2->n3 routes to n4 Manager Review n3->n4 reviews n5 Manager Approves? n4->n5 decides n6 Procurement n5->n6 Yes n13 PO Complete n5->n13 No, rejected n7 Check Budget n6->n7 checks budget n8 Budget Available? n7->n8 decides n9 Finance n8->n9 No n11 Create PO in ERP n8->n11 Yes n10 Review Reallocation n9->n10 reviews n10->n11 reallocated n12 Send to Vendor n11->n12 creates PO n12->n13 sends to vendor
Hexagons are systems. Cylinders are data stores. Diamonds are decisions. Rounded orange boxes are people and teams. A dashed amber arrow is a link the AI inferred. Pink arrows are decision branches. Blue arrows move data.

What is in this flow

Steps

  1. Requester
  2. Submit Requisition (Requester)
  3. Manager
  4. Manager Review (Manager)
  5. Manager Approves?
  6. Procurement
  7. Check Budget (Procurement)
  8. Budget Available?
  9. Finance
  10. Review Reallocation (Finance)
  11. Create PO in ERP (Procurement)
  12. Send to Vendor (Procurement)
  13. PO Complete

Mermaid code

Copy this into any Markdown file, GitHub README, or Mermaid Live to render the same flow.

flowchart TD
  n1(Requester)
  n2([Submit Requisition])
  n3(Manager)
  n4[Manager Review]
  n5{Manager Approves?}
  n6(Procurement)
  n7[Check Budget]
  n8{Budget Available?}
  n9(Finance)
  n10[Review Reallocation]
  n11[Create PO in ERP]
  n12[Send to Vendor]
  n13([PO Complete])
  n1 -->|submits| n2
  n2 -->|routes to| n3
  n3 -->|reviews| n4
  n4 -->|decides| n5
  n5 -->|Yes| n6
  n5 -->|No, rejected| n13
  n6 -->|checks budget| n7
  n7 -->|decides| n8
  n8 -->|Yes| n11
  n8 -->|No| n9
  n9 -->|reviews| n10
  n10 -->|reallocated| n11
  n11 -->|creates PO| n12
  n12 -->|sends to vendor| n13

Map your own process

Describe your version out loud, or paste the transcript of a call. Wavelength draws the flow as you talk, and you can edit it by voice, by prompt, or by hand.

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This example is part of our guide for business analysts.

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