Fixing a Broken Purchase Order Approval Workflow with a Reliability Audit - Case Study - RoboHen
A manufacturing and distribution company struggled with slow purchase order approvals, unclear routing, and manual follow-ups. We diagnosed the workflow, redesigned the approval logic, and implemented a reliable, auditable approval system.
Manufacturing & Distribution
Finance / Operations
Reliability Audit → Workflow Redesign → Controlled Execution
Where the Workflow Was Breaking
Purchase order approvals moved slowly because approval logic was unclear, routing was inconsistent, and teams relied on manual follow-ups to keep requests moving.
Breakpoints in the workflow:
- unclear approval thresholds
- inconsistent routing rules across teams and purchase categories
- manual follow-ups to chase approvals
- limited visibility into approval status
- stalled approvals during busy periods
- procurement and planning delays caused by approval bottlenecks
This workflow required constant manual coordination to avoid delays.
Reliability Audit and Workflow Redesign
We conducted a 2-week Reliability Audit to map how purchase orders actually moved through finance, operations, and approval teams.
What the audit uncovered:
- approval thresholds were not consistently applied
- routing rules depended on tribal knowledge
- stalled approvals had no structured escalation path
- final sign-off steps were not clearly owned
- audit records were incomplete or difficult to trace
What we changed:
- standardized approval thresholds by amount and category
- defined automatic routing rules for each approval path
- embedded escalation logic for stalled approvals
- introduced human-in-the-loop checkpoints for final sign-off
- added complete audit records for each approval decision
- preserved existing finance systems while improving workflow execution
Only after the approval logic was clearly defined did we implement execution using RoboHen's reliability layer.
What Changed After Fixing the Workflow
- Approval cycles reduced from days to hours
- Fewer stalled or forgotten approvals
- Improved spend visibility across teams
- Reduced procurement and planning delays
- Clear accountability at every approval step
The workflow now runs predictably without sacrificing control.
Why It Worked
- Approval logic was explicitly defined before automation
- Routing and escalation rules were standardized across teams
- Exceptions were handled predictably instead of manually
- Human oversight remained in place for final approval decisions
- Execution became consistent, auditable, and enforceable
From One Workflow to System-Wide Reliability
After stabilizing purchase order approvals, the company reused the same reliability model for:
- capital expenditure approvals
- vendor onboarding workflows
Each new workflow was built using the same logic-first approach, making expansion faster and more reliable.