Finance & FP&A

How to analyze vendor and category spend as DTC Brand Founders

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

You're running three ad platforms, a Shopify store, and a handful of supplier accounts, and the only place all the spending lives together is a bank statement you download once a month and scan for surprises. You know Meta burned $18k in Q1 but you have no idea how that breaks down by campaign-vendor versus creative-vendor versus agency retainer. Your 3PL invoice shows up in QuickBooks but your ad spend lives in a Google Sheet your media buyer updates when they remember to. By the time you catch that your packaging vendor quietly raised unit prices, you've already reordered. You need vendor-level spend visibility by category — marketing, COGS, ops, returns — updated without you touching a spreadsheet.

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

Outcome

What you'll set up

A live vendor and category spend dashboard that pulls from your Plaid-connected bank accounts and breaks every dollar into marketing, COGS, fulfillment, and overhead — updated daily, no manual uploads

Automatic anomaly alerts when any vendor charges you more than their typical amount or a new vendor appears on your account for the first time

A custom spend view tied to your DTC cost categories — ad platforms, 3PL, packaging, returns processing, SaaS subscriptions — so your monthly close takes minutes instead of a half-day in QuickBooks

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, balances, and categories refresh daily. Starch also connects directly to Stripe on a schedule to pull monthly revenue so the category dashboard can express spend as a percentage of revenue. Shopify is connected from Starch's integration catalog; the agent queries it live to pull refund totals and order-level COGS. Slack is connected from Starch's integration catalog so the weekly anomaly alert can post directly to your channel.

Prompts to copy

Build me a vendor spend dashboard that groups all Plaid transactions by vendor and category — I want to see month-over-month totals for Meta Ads, Google Ads, my 3PL, packaging suppliers, and Shopify fees separately. Flag any vendor where this month's total is more than 20% higher than the trailing 3-month average.

Add a category breakdown that splits my spending into: paid acquisition, COGS and fulfillment, returns and refunds processing, software subscriptions, and everything else. Show me the percentage of revenue each bucket represents using my Stripe monthly revenue as the denominator.

Set up a weekly alert: every Monday, send me a Slack message listing any vendor that charged me in the last 7 days that hasn't appeared in my transactions in the prior 60 days.

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

Walkthrough

Step-by-step

1 Connect your business checking account and any card accounts through Plaid — Starch syncs transactions on a schedule, so every charge your 3PL, ad platforms, and suppliers run hits the dashboard within 24 hours without you logging into a bank portal.

2 Connect Stripe so Starch can pull monthly revenue on the same schedule — this is what makes spend percentages meaningful instead of raw dollar totals that mean nothing without context.

3 Install the Transaction Insights app from the Starch App Store as your starting point — it gives you vendor-level and category-level spend out of the box and you'll customize it for DTC cost buckets from there.

4 Tell Starch how you want your categories defined: describe your actual cost structure in plain English (e.g., 'paid acquisition includes Meta, Google, TikTok, and any agency fees; COGS and fulfillment includes my 3PL invoices and packaging vendors; returns processing is any charge from my returns portal'). Starch remaps the transaction categories to match.

5 Connect Shopify from Starch's integration catalog so the agent can pull refund counts and amounts — this feeds into your returns-processing spend line and lets you see whether your return rate is driving vendor costs up.

6 Set the anomaly threshold rule: tell Starch which vendors are high-stakes enough to alert on (your 3PL, ad platforms, packaging suppliers) and what delta triggers a flag — 20% over trailing average is a reasonable starting point for most DTC operations.

7 Add the new-vendor alert: ask Starch to watch for any payee appearing in your transactions that hasn't charged you in the prior 60 days and surface those in a weekly Slack digest — this catches unauthorized charges, forgotten trials that convert to paid, and supplier substitutions your ops team made without telling finance.

8 Wire in the Runway Analysis app so your vendor spend view connects to burn rate — when ad spend spikes in a push month, you want to see the cash runway impact in the same place, not two separate dashboards.

9 Set a weekly Monday automation: Starch pulls last week's transactions, summarizes total spend by category versus the prior week, flags any anomalies, and posts a Slack message with the numbers. You read it in 90 seconds instead of building it yourself.

10 At the end of each month, use the dashboard to generate a vendor spend summary you can paste directly into your board update or send to your bookkeeper — the categories and vendor names are already clean, so there's no reformatting step.

11 As your vendor list grows, revisit the category mapping every quarter and update the rules in plain language — Starch rebuilds the view without you touching any underlying data structure.

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

March 2026 spend close — spring push month

Sample numbers from a real run

Meta Ads (paid acquisition)	22,400
Google Ads (paid acquisition)	8,100
Creative agency retainer (paid acquisition)	4,500
3PL — ShipBob invoices (fulfillment)	11,200
Packaging supplier — Noissue (COGS)	3,800
Returns processing — Loop (ops)	1,400
SaaS subscriptions — Klaviyo, Gorgias, Rechargeable, etc.	2,100
Shopify fees and payment processing	1,900

March was a push month — you ran a spring sale and pulled forward inventory. The Transaction Insights dashboard showed paid acquisition at $35,000 combined (Meta plus Google plus agency), which looked reasonable until Starch flagged that the creative agency had billed $4,500 when their trailing 3-month average was $2,800. Turns out they added a video production line item without a change order. Caught it before the April invoice. Fulfillment came in at $11,200 — ShipBob's per-unit rate held steady but volume was up 40% on the spring push, which tracked. The anomaly Starch actually surfaced that mattered: a $340 charge from a packaging vendor you hadn't used since October reappeared on March 19th. Your ops manager had placed a small test order of a new box size. Not a problem, but it showed up in the new-vendor alert and you knew about it by Monday morning instead of discovering it during a bank rec six weeks later. Total March spend across all categories: $55,400. Stripe showed $141,000 in revenue for the month. The dashboard expressed that as 24.8% of revenue going to paid acquisition, 7.9% to fulfillment, and 1.5% to returns — numbers your board actually understands and that you could pull up in the meeting rather than building on the flight there.

Measurement

How you'll know it's working

Ad spend as % of revenue (by platform: Meta, Google, TikTok separately)

Fulfillment cost per order (3PL invoice total divided by Shopify order count)

Vendor anomaly count per month (charges more than 20% above trailing average)

SaaS subscription creep (month-over-month change in software spend)

Returns processing cost as % of gross revenue

Comparison

What this replaces

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

QuickBooks + manual categorization

QuickBooks closes the books but doesn't alert you to vendor anomalies in real time or let you define DTC-specific cost buckets without an accountant reconfiguring your chart of accounts — and note that QuickBooks report views like P&L are temporarily disabled in Starch pending a connector fix, though entity-level data like bills and vendor payments syncs normally.

Google Sheets connected to bank export

You already have this and it's the thing you're trying to replace — it requires someone to download, paste, and re-categorize transactions every month, and it doesn't alert you to anything.

Ramp or Brex spend management

Works well if all your spend runs through their card, but your 3PL bills via ACH, your packaging supplier invoices Net 30, and your ad platforms autopay from a checking account — so you'd still have blind spots on anything not on the card.

Shopify analytics + Meta Ads Manager side by side

Each platform shows you its own slice but neither talks to your bank, your 3PL invoices, or your supplier charges — you still have to build the cross-platform view yourself.

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 ad spend runs through Meta and Google directly from my business checking — will Starch pick those up automatically?

Yes. Starch syncs your Plaid-connected bank accounts on a schedule, so when Meta or Google debits your account, that transaction appears in your spend dashboard within 24 hours. You tell Starch which vendors to group under paid acquisition and it applies that mapping going forward — no manual tagging each month.

My 3PL sends invoices on Net 30 terms, not automatic charges. Will Starch see those?

If you pay 3PL invoices from a Plaid-connected bank account or card, yes — the payment hits your transaction feed and Starch picks it up. If invoices sit unpaid in email, Starch can read those from your connected Gmail account and surface them separately, but the bank transaction is the cleaner signal for spend tracking.

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

Starch is not SOC 2 Type II certified yet — that's worth knowing before you connect. The bank connection goes through Plaid, which is SOC 2 certified and used by thousands of fintech products. But if SOC 2 on the Starch side is a hard requirement for your business, that's an honest limit to be aware of today.

I also use Xero, not QuickBooks. Can Starch pull my accounting data?

Yes — connect Xero from Starch's integration catalog; the agent queries it live when your app runs. It won't sync on a schedule the way Plaid or Stripe does, but for pulling vendor totals or expense reports on demand, it works.

Can Starch track spend from platforms that don't have an API, like my niche packaging supplier's portal?

If the charges hit your bank account, Plaid captures them. If you need to pull invoice-level detail from a supplier portal that you log into manually, Starch can automate that through your browser — no API needed. Describe what you want to pull and Starch builds the browser automation to log in and extract it.

Will this replace my bookkeeper?

No, and it's not trying to. Your bookkeeper closes the books, handles reconciliation, and files taxes. Starch gives you the operational visibility between closes — so you catch a vendor overcharge in week two of the month instead of week six of the following month when the books are done.