---
slug: manufacturing-supplier-po-confirmation
title: "Tier 1 Automotive Supplier Cuts Response Time from 3.2 Days to 0.8 Days Across 140 Vendors"
industry: Manufacturing
useCase: Supplier Communication
companySize: 1,200 employees, 3,200 monthly vendor communications
location: Midwest US
metaTitle: "Manufacturing Supplier Communication Case Study | QuickVoice"
metaDescription: "A Tier 1 automotive parts supplier used QuickVoice AI to cut supplier response time from 3.2 days to 0.8 days across 140 vendors, saving $380K/year."
canonical: https://quickvoice.co/case-studies/manufacturing-supplier-po-confirmation
ogImage: ""
heroStat: "-75%"
heroStatLabel: "Supplier response time reduction"
tags: [Manufacturing, Supply Chain, SAP, Vendor Management, Automotive]
---

# Tier 1 Automotive Supplier Cuts Response Time from 3.2 Days to 0.8 Days Across 140 Vendors

In automotive manufacturing, the line between a smooth production day and a catastrophic line-down event often comes down to a single unanswered phone call. For a Tier 1 automotive parts supplier operating four plants across the Midwest, that margin had grown dangerously thin. Thousands of purchase orders flowed out to 140 vendors every month, and far too many of them disappeared into silence — no confirmation, no expected ship date, no indication that anyone on the other end had even received the order. This is the story of how QuickVoice AI voice agents transformed their supplier communication workflow, eliminated silent PO failures, and delivered $380,000 in annual savings.

---

## 1. Company Profile

| Detail | Description |
|---|---|
| **Company Type** | Tier 1 automotive parts supplier |
| **Employees** | 1,200 across manufacturing, engineering, and administration |
| **Facilities** | 4 manufacturing plants across Midwest US |
| **Active Vendors** | 140 suppliers spanning raw materials, sub-components, packaging, and tooling |
| **Monthly Vendor Communications** | 3,200+ outbound calls, emails, and follow-ups |
| **ERP System** | SAP S/4HANA |
| **Procurement Tools** | SAP Ariba for sourcing, internal portal for vendor scorecards |
| **Key Certifications** | IATF 16949, ISO 14001 |

The company had been a trusted supplier to three major North American automakers for over 25 years. Their product line included stamped metal components, welded assemblies, and painted sub-assemblies delivered just-in-time to OEM assembly plants. In automotive supply chains, reliability is everything. A single missed delivery can halt an assembly line, triggering penalty charges that start at $5,000 per hour and escalate rapidly. The company had built its reputation on delivery performance, but the manual processes holding that performance together were buckling under increasing volume and complexity.

Their supply chain team comprised 12 coordinators spread across the four plants, each responsible for managing relationships with 10 to 15 vendors. The work was relentless. Every purchase order that went out needed a confirmation. Every confirmed order needed a ship date. Every delayed shipment needed an exception report. And every piece of this puzzle was tracked through a fragile combination of phone calls, emails, and spreadsheets taped together with institutional knowledge.

---

## 2. The Challenge

The Director of Supply Chain, Mark Jankowski, had been documenting the breakdown for over a year. The data painted a picture of a system that was functional but dangerously fragile.

### Silent PO Failures Were Causing Surprise Stockouts

The most insidious problem was what the team called "silent POs" — purchase orders that were transmitted to vendors via EDI or email but never acknowledged. In theory, vendors were contractually obligated to confirm receipt within 24 hours. In practice, roughly 18% of POs received no confirmation within 72 hours. Some of these were simply administrative delays. But others were genuine failures — the vendor had not received the order, had capacity constraints they had not communicated, or had material shortages that would prevent them from shipping on time.

The supply chain team had no way to distinguish between a harmless delay and an impending stockout until it was too late. On average, 23 silent PO failures per month resulted in expedited freight charges, emergency sourcing from backup vendors, or — in the worst cases — line-down events at the company's own plants or their OEM customers.

### Line-Down Events Were Costing $50,000+ Each

In the 12 months before QuickVoice deployment, the company experienced 16 line-down incidents directly attributable to supplier communication failures. Each incident carried direct costs averaging $50,000 or more, including premium freight, overtime labor to recover lost production, and contractual penalties from OEM customers. Four of those incidents were severe enough to trigger formal corrective action requests from the automakers — a reputational cost that was impossible to quantify but impossible to ignore.

### Coordinators Were Drowning in Phone Work

The 12 supply chain coordinators collectively spent more than 85 hours per week on the phone — calling vendors to confirm POs, chasing expected delivery dates, following up on discrepancies, and managing exceptions. That was roughly 7 hours per coordinator per week consumed by repetitive outbound calls, most of which followed identical scripts: "Did you receive PO number X? Can you confirm the ship date? Are there any issues we should know about?"

This phone work was not just tedious; it was actively preventing coordinators from doing higher-value work like vendor development, cost reduction negotiations, and strategic sourcing initiatives. The team was stuck in reactive mode, fighting fires instead of preventing them.

### Email Confirmations Were Unreliable

The company had attempted to solve the confirmation problem with automated email reminders through SAP. The results were disappointing. Vendor response rates to email reminders hovered around 35%. Many vendors — particularly smaller shops — did not have dedicated procurement staff monitoring email. Messages landed in crowded inboxes and were ignored, buried, or routed to the wrong person. The email approach created a false sense of coverage without actually solving the communication gap.

---

## 3. Why QuickVoice

Mark and his team evaluated several approaches over a six-month period, including hiring additional coordinators, implementing a vendor portal, and deploying two competing AI communication platforms. The decision to choose QuickVoice came down to four critical factors.

**SAP S/4HANA Native Integration.** QuickVoice offered a direct API integration with SAP, enabling real-time access to purchase order data, vendor master records, delivery schedules, and goods receipt confirmations. The AI agent could pull PO details, identify the correct vendor contact, and initiate outreach without any manual data extraction or file uploads.

**Voice-First Communication for Non-Digital Vendors.** Many of the company's 140 vendors were small to mid-size machine shops and material suppliers with limited digital infrastructure. Email and portal-based solutions had consistently failed with this segment. QuickVoice's voice-first approach met these vendors where they actually were — on the phone. The AI agent could call a vendor's shipping desk, speak naturally, and capture the information needed in a two-minute conversation.

**Structured Data Capture and Exception Flagging.** Unlike a simple automated reminder, QuickVoice could capture structured responses — confirmed ship dates, partial shipment alerts, material shortage notifications — and write them back to SAP in real time. Non-responses were automatically escalated, and the system flagged any vendor whose confirmed ship date deviated from the PO requested date by more than 48 hours.

**Scalability Without Headcount.** Adding two more coordinators would have cost approximately $140,000 per year in salary and benefits, and the company was already struggling to recruit supply chain professionals in a competitive labor market. QuickVoice could handle the entire PO confirmation workflow for 140 vendors at a fraction of that cost, with zero recruitment delays.

> "We had tried everything — more emails, more portal reminders, even penalty clauses in vendor agreements. None of it worked because the fundamental problem was that nobody was actually picking up the phone and talking to these vendors. QuickVoice did exactly that, at a scale we could never match manually."
> — Mark Jankowski, Director of Supply Chain

---

## 4. The Solution

QuickVoice deployed three interconnected capabilities: automated PO confirmation calls, delivery date tracking, and exception escalation management.

### Automated PO Confirmation Calls

Within 4 hours of a purchase order being released in SAP, QuickVoice initiated an outbound voice call to the designated contact at the receiving vendor. The AI agent identified itself, referenced the specific PO number, line items, quantities, and requested delivery date, and asked the vendor to confirm receipt and ability to fulfill. The conversation was natural and conversational, designed to replicate the experience of speaking with a knowledgeable supply chain coordinator.

If the vendor confirmed the order, the AI agent captured the expected ship date and any notes (partial shipment plans, packaging changes, etc.) and wrote the confirmation back to SAP immediately. If the call went unanswered, the system retried at three configurable intervals over the next 24 hours, varying the time of day to maximize contact probability.

### Delivery Date Tracking and Variance Alerts

For confirmed orders, QuickVoice initiated follow-up calls at configurable intervals — typically 3 days and 1 day before the expected ship date — to verify that the shipment was on track. If the vendor reported a delay, the AI agent captured the revised ship date and reason code and pushed an alert to the responsible coordinator with enough lead time to arrange backup sourcing or adjust the production schedule.

This proactive tracking transformed the supply chain team's visibility. Instead of discovering problems when a truck failed to arrive, coordinators now had 24 to 72 hours of advance warning on the vast majority of delivery exceptions.

### Exception Escalation Management

QuickVoice implemented a tiered escalation protocol for non-responsive vendors. If a vendor failed to confirm a PO within 24 hours and two call attempts, the system escalated to the vendor's account manager at the supplier company. If confirmation was still not received within 48 hours, the alert was routed to the supply chain coordinator with a recommended action (source from backup vendor, expedite freight, adjust production schedule). Critical-path components had accelerated escalation timelines — 12 hours for first escalation, 24 hours for coordinator alert.

---

## 5. Implementation

The full deployment took five weeks from contract signing to production go-live across all four plants.

### Weeks 1-2: SAP Integration and Vendor Data Mapping

The QuickVoice engineering team established the API connection with the company's SAP S/4HANA instance. Vendor master data was mapped, including primary and secondary contact phone numbers for each of the 140 active suppliers. PO data feeds were configured to trigger outbound calls automatically upon PO release. The team worked with the IT department to validate data security protocols, ensure encrypted data transmission, and establish audit logging for all AI-vendor interactions.

### Week 3: Call Script Development and Pilot Testing

Call scripts were developed in collaboration with senior supply chain coordinators who understood the nuances of vendor communication. Scripts covered seven distinct scenarios: standard PO confirmation, multi-line PO confirmation, delivery date follow-up, delay notification capture, partial shipment confirmation, expedited order confirmation, and blanket order release confirmation. A pilot group of 20 vendors was selected for initial testing — a mix of large strategic suppliers and smaller regional shops — to validate the AI agent's performance across different vendor types and communication styles.

### Week 4: Expanded Rollout and Coordinator Training

Based on pilot results, the system was rolled out to all 140 vendors. Supply chain coordinators received 2 hours of training on the QuickVoice dashboard, covering real-time call status monitoring, exception management workflows, and how to review and override AI-captured data when needed. Each coordinator could see the confirmation status of every PO in their portfolio at a glance, replacing the spreadsheet-based tracking system they had maintained manually.

### Week 5: Optimization and Full Production

The final week focused on tuning call timing, retry schedules, and escalation thresholds based on real-world performance data. Call success rates were analyzed by time of day and day of week for each vendor, and the system automatically optimized call scheduling to maximize first-attempt contact rates. By the end of Week 5, the system was fully autonomous.

---

## 6. Results

After 90 days of full production operation, the supply chain leadership team conducted a comprehensive performance review. The results were transformative.

| Metric | Before QuickVoice | After QuickVoice | Change |
|---|---|---|---|
| **Avg supplier response time** | 3.2 days | 0.8 days | **-75%** |
| **On-time delivery rate** | 87% | 94% | **+8 percentage points** |
| **Coordinator time on calls** | 85 hrs/week | 36 hrs/week | **-58%** |
| **Silent PO failures caught** | Not tracked | 23/month avg | **New capability** |
| **Line-down incidents** | 4/quarter | 1/quarter | **-75%** |
| **PO confirmation rate (within 24 hrs)** | 42% | 91% | **+117%** |
| **Annual estimated value** | — | $380,000 | — |

### Breaking Down the $380,000 in Annual Value

The savings came from four primary sources. First, the reduction in line-down incidents from 16 per year to an annualized rate of 4 eliminated approximately $200,000 in direct penalty costs, premium freight charges, and overtime labor. Second, the 58% reduction in coordinator phone time freed roughly 2,500 hours of labor annually, which was redirected to vendor development and cost reduction negotiations that yielded an additional $85,000 in procurement savings. Third, the elimination of expedited freight for late-discovered delays saved approximately $60,000. Fourth, the reduction in safety stock levels — enabled by improved delivery visibility — freed $35,000 in working capital.

### Vendor Relationship Improvement

An unexpected benefit was the improvement in vendor relationships. Several suppliers reported that they appreciated the consistent, professional communication from the AI agent. Smaller vendors, who had sometimes felt overlooked by the company's busy coordinators, noted that they now received timely PO communications and felt more connected to the supply chain. The company's vendor satisfaction survey scores improved by 12% in the quarter following deployment.

> "The irony is that our vendors actually prefer talking to the AI agent. It calls at consistent times, it is always polite, it never forgets to follow up, and it does not waste their time with small talk. Our vendors know that when QuickVoice calls, it is a two-minute conversation and they are done."
> — Rachel Kim, Senior Supply Chain Coordinator

---

## 7. What's Next

Building on the success of the PO confirmation deployment, the company is planning three additional QuickVoice initiatives for the coming year.

### Inbound Vendor Communication Handling

The supply chain team currently receives 40 to 50 inbound calls per day from vendors reporting shipment updates, asking questions about PO changes, or requesting delivery schedule adjustments. QuickVoice will be deployed to handle these inbound calls, capturing structured data and routing only true exceptions to human coordinators. The expected result is a further 30% reduction in coordinator phone time.

### Quality Non-Conformance Notification

When incoming material fails inspection, the current process for notifying the vendor and initiating a corrective action request is entirely manual. QuickVoice will automate the initial vendor notification call, communicate the non-conformance details, capture the vendor's preliminary root cause assessment, and schedule a formal corrective action review meeting — all within hours of the quality event instead of the current 3 to 5 day notification cycle.

### Supplier Capacity Planning Calls

Ahead of each quarterly production forecast update, coordinators spend two to three weeks calling vendors to validate capacity for upcoming volume changes. QuickVoice will conduct these capacity check calls systematically across all 140 vendors within a 5-day window, capturing confirmed capacity, flagged constraints, and lead time changes in a structured format that feeds directly into the company's S&OP planning process.

---

## 8. Key Takeaways

- **Silent PO failures are a hidden risk with outsized consequences.** The company had no visibility into the 18% of purchase orders that received no vendor acknowledgment. QuickVoice's proactive confirmation calls exposed 23 potential failures per month that would have otherwise gone undetected until a truck failed to arrive.
- **Voice communication outperforms email for non-digital vendor bases.** Email reminders achieved a 35% response rate. QuickVoice voice calls achieved a 91% confirmation rate within 24 hours. For manufacturing supply chains with diverse vendor bases, phone-based outreach remains the most reliable communication channel.
- **Proactive tracking prevents problems; reactive tracking only documents them.** The shift from discovering delivery problems on the day of expected receipt to identifying them 24 to 72 hours in advance was the single most valuable change. It transformed the supply chain team from firefighters into planners.
- **Coordinator time is too valuable for repetitive phone work.** Freeing 2,500 hours of coordinator time annually did not eliminate jobs — it elevated them. Coordinators redirected their energy to vendor development and strategic sourcing, generating $85,000 in procurement savings that would not have happened otherwise.

> "We used to joke that our job title should be 'professional phone dialer' instead of 'supply chain coordinator.' QuickVoice gave us our jobs back. We are actually doing supply chain management now instead of just chasing confirmations. The $380K in savings is real, but the transformation in how our team operates is what I am most proud of."
> — Mark Jankowski, Director of Supply Chain
