Finance & FP&A

How to analyze vendor and category spend as CPG Founders

Finance & FP&AFor CPG Founders2 apps11 steps~22 min to set up

You're spending $8–12k/month across co-packers, ingredient suppliers, 3PLs, FBA prep centers, and a dozen SaaS tools — and your only visibility is a bank balance and a QuickBooks report your bookkeeper updates every two weeks. By the time you realize your co-packer raised their tolling fee or your corrugate supplier added a fuel surcharge, it's already happened three times. Most CPG founders track vendor spend in a spreadsheet that's three weeks stale, can't tell whether SG&A is creeping up because of a new subscription or a vendor billing error, and have no idea which category is eating margin without a full month-end close. You're too small for Coupa, too complex for a bank app.

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Finance & FP&AFor CPG Founders2 apps11 steps~22 min to set up

Outcome

What you'll set up

A live vendor-level spend dashboard pulling from your actual bank transactions, updated daily, showing every co-packer, 3PL, and ingredient supplier charge with month-over-month trends

Automatic anomaly alerts that flag when a vendor charges more than their normal range — so a $3,200 co-packing run that should be $2,800 gets caught the day it posts, not at month-end

A custom CPG spend breakdown by category (co-manufacturing, packaging, freight, trade spend, SaaS) so you can see exactly where your COGS and opex are going without waiting for your bookkeeper

The Starch recipe

Apps, data, and prompts

The combination of Starch apps, the data sources they pull from, and the prompts you use to drive them.

Apps used

Transaction Insights Runway Analysis

Data sources & config

Starch syncs your Plaid bank account data on a schedule (transactions, categorized, with institution and balance data) and your Stripe data on a schedule (charges, payouts) — both refresh automatically so the dashboard is always current. No manual exports, no CSV uploads.

Prompts to copy

Build me a vendor spend dashboard from my Plaid transactions. Group charges by vendor and by category: co-manufacturing, ingredients, packaging/corrugate, freight and 3PL, trade spend/promotions, and SaaS tools. Show month-over-month trend for each category and flag any vendor whose charge this month is more than 15% higher than their 3-month average.

Add a section that shows my top 10 vendors by trailing-90-day spend, with the date and amount of their last three charges so I can spot billing pattern changes.

Connect my Stripe revenue so the dashboard shows gross margin contribution alongside spend — I want to see if co-manufacturing costs are growing faster than revenue.

Run these in Starch → or paste them into your favorite agent

Walkthrough

Step-by-step

1 Connect your business checking account and any credit cards through Plaid — Starch syncs your transactions on a schedule, typically pulling 6+ months of history on first connect.

2 Connect Stripe so Starch can pair your revenue data alongside spend — this is what makes gross margin visible, not just raw expense totals.

3 Open the Transaction Insights starter app from the App Store and fork it for CPG — it comes pre-built with category trends and anomaly detection, but you'll customize the categories to match how your business actually works (co-packing, ingredients, freight, etc.).

4 Tell Starch your vendor taxonomy in plain English: 'Categorize any charge from [co-packer name], [co-packer name 2] as co-manufacturing. Anything from [3PL name] or FedEx Freight as freight and 3PL. Shopify, Klaviyo, Extensiv as SaaS.' Starch maps these rules forward.

5 Set your anomaly thresholds: 'Alert me when any vendor charges more than 20% above their 3-month average, and flag any new vendor that appears for the first time in the last 60 days.'

6 Build a top-vendor view: 'Show me my top 15 vendors by trailing-90-day spend with their last three charge dates and amounts — I want to catch tolling fee increases and fuel surcharges the day they hit.'

7 Add a runway overlay from the Runway Analysis app: 'Pull my net burn and cash balance into the spend dashboard so I can see whether this month's co-packing cost spike changes my runway estimate.'

8 Set up a Monday morning Slack alert: 'Every Monday at 8am, send me a Slack message with last week's total spend by category, any anomalies flagged, and current cash balance versus 30 days ago.'

9 If your distributor deductions are hitting your bank as net deposits, add a note prompt: 'Flag any ACH from [distributor name] that's more than 8% below the expected invoice amount — that's likely an invalid deduction I need to dispute.'

10 Once the dashboard is live, review the first 90-day vendor rollup and look for subscriptions you forgot you were paying and vendors who have quietly increased their per-unit rates.

11 Share a read-only view with your bookkeeper or CFO so they're working from the same live data instead of a stale export — no separate login or report generation required.

See this running on Starch

Connect your tools, describe what you want, and the agent builds it. Closed beta is free.

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Worked example

Q1 2026 CPG Vendor Spend Review — March Close

Sample numbers from a real run

Co-manufacturing (contract packager, two SKUs)	34,200
Ingredients (flavor house + commodity supplier)	18,700
Corrugate and packaging materials	9,400
3PL storage and outbound fulfillment	7,100
FBA prep center	3,800
Inbound freight (LTL from co-packer to 3PL)	4,200
Trade spend (slotting, promotional allowances)	5,500
SaaS tools (Shopify, Klaviyo, Extensiv, Cin7)	2,900
Misc / new vendors flagged	1,600

In March, the dashboard flagged two anomalies automatically. First: the contract packager charged $34,200 against a 3-month average of $28,400 — a $5,800 overage. Drilling in, the last three charges were $27,100, $29,200, and $34,200, which matched a new tolling rate the co-packer had mentioned verbally in February but never sent in writing. Second: a new $1,600 ACH appeared from a vendor the system had never seen before — turned out to be a one-time freight broker charge from a spot shipment the ops coordinator booked without running it through the normal process. Both got caught within 24 hours of posting, not three weeks later at close. The Monday Slack summary showed total March spend of $87,400 against $91,200 in February — a 4% drop driven by lower inbound freight volume, not a real improvement in unit economics. The runway overlay showed 9.4 months of cash at current burn, down from 10.1 the prior week because of the co-packing charge timing.

Measurement

How you'll know it's working

Co-manufacturing cost as % of net revenue (target: <28% for most ambient CPG)

Total landed COGS per case by SKU (co-pack + ingredients + packaging + inbound freight)

Month-over-month vendor spend variance by category, flagged at ±15%

Number of new vendors appearing in the last 60 days (catches unauthorized spend)

Cash runway in months at current net burn rate

Comparison

What this replaces

The other ways teams handle this today, and how the Starch version compares.

QuickBooks + manual category review

QuickBooks gives you a P&L but it's only as current as your last bookkeeper sync, you can't set per-vendor anomaly thresholds, and building a co-packing-specific category view requires chart-of-accounts surgery most founders never do.

Ramp or Brex spend management

Great for card spend, but most CPG vendors — especially co-packers and ingredient suppliers — get paid by ACH or wire, which card-based spend tools don't see at all.

Cin7 or Extensiv cost reporting

Inventory and COGS reporting in your IMS is useful for landed cost, but it doesn't show you bank-level vendor spend, SaaS subscriptions, or cash burn alongside operational spend in one view.

Excel/Google Sheets with bank export

Gives you full control but you're re-doing the same pivot table every month, anomaly detection is whatever you remember to check for, and it breaks the moment someone forgets to update it.

On Starch RECOMMENDED

One platform — transaction insights, runway analysis all running on connected data. Setup in plain English; numbers stay current via scheduled syncs and live agent queries.

Try it on Starch →

FAQ

Frequently asked questions

My co-packer bills us by ACH directly to our business checking — will Starch see those charges?

Yes. Starch syncs your Plaid-connected bank account data on a schedule, so ACH transactions, wires, and card charges all show up. The dashboard reads whatever hits your connected accounts, not just card spend.

I have two bank accounts — one operating, one for payroll and taxes. Can I connect both?

Yes. You can connect multiple Plaid accounts, and the vendor spend dashboard can pull from all of them or let you filter by account. Most CPG founders want to exclude the payroll account from vendor spend analysis, which you can configure by telling Starch which account to exclude.

Does Starch store my bank transaction history permanently so I can run year-over-year comparisons?

Starch syncs and stores your transaction data from connected Plaid accounts, but it's designed for live operational visibility, not a long-horizon data warehouse. For year-over-year trend analysis going back more than 12–18 months, you'd want to supplement with a QuickBooks export or your accounting system.

Can the anomaly detection learn our normal billing cycles, like a co-packer who bills every 6 weeks instead of monthly?

You can describe the pattern to Starch and it'll apply the rule going forward: 'Flag any charge from [co-packer name] that varies more than 15% from the average of their last three invoices' handles irregular billing cycles without requiring a fixed monthly calendar.

I use QuickBooks for my books — will this replace it or duplicate it?

It's not a replacement for QuickBooks. Think of the Starch spend dashboard as your daily operational view — you see anomalies and trends in real time — while QuickBooks stays your system of record for the accountant. Starch doesn't write back to QuickBooks; it reads from your bank directly via Plaid.

My distributor sends net payments with deductions already taken out. Can Starch flag when those deductions look wrong?

Yes, with a custom rule. Tell Starch: 'Flag any ACH from [distributor name] where the deposit is more than X% below the expected invoice amount.' You'll need to know your expected amount per PO, but the flagging logic is straightforward to set up as an alert.

Is Starch SOC 2 certified? I'm cautious about connecting bank accounts.

Starch is not currently SOC 2 Type II certified. If that's a hard requirement for your procurement or compliance process, it's worth knowing upfront. The Plaid connection uses the same OAuth token model your bank apps use — Starch never sees your login credentials — but the SOC 2 gap is real and we won't pretend otherwise.