Multi-tenant ERP for growing businesses

From purchase order
to posted journal entry.

CustomerP unifies finance, commerce, and supply chain in one multi-tenant platform — where every sale, receipt, and payment posts straight to a general ledger that always balances.

Start for free Sign in

acme.customerp.app/finance/ledger

Live

Dashboard

Finance

Commerce

Supply Chain

Payables

Analytics

Cash

$284k

↑ +6%

Receivables

$96k

↑ +3%

Payables

$61k

↓ -8%

Net Income

$48k

↑ +12%

Revenue — last 12 months

Expense breakdown

COGS54%

Payroll31%

Other15%

Recent journal entries

INV-1042

Receivable+$4,200

BILL-318

Payable-$1,860

GRN-77

Inventory+$2,540

integrated apps, one login

0.9%

uptime SLA

ledger, always balanced

multi-currency ready

The problem

Running a business shouldn't mean reconciling five systems by hand.

Accounting here, inventory there, sales somewhere else. Here's what the gaps cost you every month.

4 places to break

01
Your books and your stock disagree
Inventory moves in one tool, accounting lives in another. Month-end never ties out — and you can't fully trust either number.
02
Every document is keyed four times
A purchase order becomes a goods receipt becomes a bill becomes a journal entry — re-typed by hand at every step, four chances to get it wrong.
03
Currency and VAT live in a spreadsheet
Exchange rates, tax codes, and VAT returns tracked cell by cell. One stale rate or wrong code and the filing goes out wrong.
04
No audit trail across the business
Who approved this payment, which invoice it cleared, what account it hit — nobody can answer without a forensic dig through inboxes.

The solution

Four apps.
One login. One ledger.

Finance, Commerce, Supply Chain, and Platform share every customer, product, and permission — no integrations, no duplicate entry.

Finance & General Ledger

Double-entry books that always balance

Chart of accounts, journal entries, and financial statements on demand. Every transaction posts to a ledger that reconciles to the cent.

Payables & Receivables

Bills and invoices that post themselves

Record a bill or raise an invoice and it lands in the general ledger automatically — idempotent, so nothing is ever double-counted.

Supply Chain & Inventory

Purchase to receipt to stock

Parties, warehouses, purchase orders, goods receipts, and sales orders — stock levels and cost of goods move in lockstep with your books.

Commerce & Sales

Catalogue to checkout

Products, offerings, and bundles with a cart and Stripe-powered checkout. Sales flow straight through to receivables and revenue.

Multi-currency & Tax

Compliance built in, not bolted on

Exchange rates, tax codes, a VAT register and returns, plus fiscal periods — so month-end and filings are a click, not a spreadsheet.

Platform & Analytics

Multi-tenant, role-aware, live

Isolated tenants, fine-grained roles, email automation, and Redis-cached dashboards — cash, receivables, and margins in real time.

Setup

Up and running
in an afternoon.

Create your workspace

Sign up, name your tenant, and set your base currency, fiscal calendar, and chart of accounts. Invite the team with the right roles.

Bring your operations in

Add parties, warehouses, and products. Import opening balances and tax codes. Connect Stripe and your mail server.

Everything posts to one ledger

Raise a sales order, receive goods, send an invoice — inventory, cost of goods, and the general ledger all update together, automatically.

Under the hood

Production-grade.
Built to be trusted with your books.

Next.js, NestJS, PostgreSQL, Redis, Stripe, and Docker. Deploy on our cloud or your own infrastructure — with the data isolation and audit trail a financial system demands.

PostgreSQL-backed double-entry ledger

Idempotent posting — no double-counted entries

Multi-tenant data isolation per workspace

Queued jobs for email, exports & reconciliation

Get access

Ready to consolidate?

Put your whole business
on one ledger.

No credit card required. Spin up a workspace in minutes and see your first invoice post itself to the general ledger.

Start for free Sign in

Multi-tenant ERP for growing businesses

From purchase order
to posted journal entry.

CustomerP unifies finance, commerce, and supply chain in one multi-tenant platform — where every sale, receipt, and payment posts straight to a general ledger that always balances.

Start for free Sign in

acme.customerp.app/finance/ledger

Live

Dashboard

Finance

Commerce

Supply Chain

Payables

Analytics

Cash

$284k

↑ +6%

Receivables

$96k

↑ +3%

Payables

$61k

↓ -8%

Net Income

$48k

↑ +12%

Revenue — last 12 months

Expense breakdown

COGS54%

Payroll31%

Other15%

Recent journal entries

INV-1042

Receivable+$4,200

BILL-318

Payable-$1,860

GRN-77

Inventory+$2,540

integrated apps, one login

0.9%

uptime SLA

ledger, always balanced

multi-currency ready

The problem

Running a business shouldn't mean reconciling five systems by hand.

Accounting here, inventory there, sales somewhere else. Here's what the gaps cost you every month.

4 places to break

01
Your books and your stock disagree
Inventory moves in one tool, accounting lives in another. Month-end never ties out — and you can't fully trust either number.
02
Every document is keyed four times
A purchase order becomes a goods receipt becomes a bill becomes a journal entry — re-typed by hand at every step, four chances to get it wrong.
03
Currency and VAT live in a spreadsheet
Exchange rates, tax codes, and VAT returns tracked cell by cell. One stale rate or wrong code and the filing goes out wrong.
04
No audit trail across the business
Who approved this payment, which invoice it cleared, what account it hit — nobody can answer without a forensic dig through inboxes.

The solution

Four apps.
One login. One ledger.

Finance, Commerce, Supply Chain, and Platform share every customer, product, and permission — no integrations, no duplicate entry.

Finance & General Ledger

Double-entry books that always balance

Chart of accounts, journal entries, and financial statements on demand. Every transaction posts to a ledger that reconciles to the cent.

Payables & Receivables

Bills and invoices that post themselves

Record a bill or raise an invoice and it lands in the general ledger automatically — idempotent, so nothing is ever double-counted.

Supply Chain & Inventory

Purchase to receipt to stock

Parties, warehouses, purchase orders, goods receipts, and sales orders — stock levels and cost of goods move in lockstep with your books.

Commerce & Sales

Catalogue to checkout

Products, offerings, and bundles with a cart and Stripe-powered checkout. Sales flow straight through to receivables and revenue.

Multi-currency & Tax

Compliance built in, not bolted on

Exchange rates, tax codes, a VAT register and returns, plus fiscal periods — so month-end and filings are a click, not a spreadsheet.

Platform & Analytics

Multi-tenant, role-aware, live

Isolated tenants, fine-grained roles, email automation, and Redis-cached dashboards — cash, receivables, and margins in real time.

Setup

Up and running
in an afternoon.

Create your workspace

Sign up, name your tenant, and set your base currency, fiscal calendar, and chart of accounts. Invite the team with the right roles.

Bring your operations in

Add parties, warehouses, and products. Import opening balances and tax codes. Connect Stripe and your mail server.

Everything posts to one ledger

Raise a sales order, receive goods, send an invoice — inventory, cost of goods, and the general ledger all update together, automatically.

Under the hood

Production-grade.
Built to be trusted with your books.

Next.js, NestJS, PostgreSQL, Redis, Stripe, and Docker. Deploy on our cloud or your own infrastructure — with the data isolation and audit trail a financial system demands.

PostgreSQL-backed double-entry ledger

Idempotent posting — no double-counted entries

Multi-tenant data isolation per workspace

Queued jobs for email, exports & reconciliation

Get access

Ready to consolidate?

Put your whole business
on one ledger.

No credit card required. Spin up a workspace in minutes and see your first invoice post itself to the general ledger.

Start for free Sign in

From purchase orderto posted journal entry.

Running a business shouldn't mean reconciling five systems by hand.

Your books and your stock disagree

Every document is keyed four times

Currency and VAT live in a spreadsheet

No audit trail across the business

Four apps.One login. One ledger.

Finance & General Ledger

Payables & Receivables

Supply Chain & Inventory

Commerce & Sales

Multi-currency & Tax

Platform & Analytics

Up and runningin an afternoon.

Create your workspace

Bring your operations in

Everything posts to one ledger

Production-grade.Built to be trusted with your books.

Put your whole businesson one ledger.

From purchase orderto posted journal entry.

Running a business shouldn't mean reconciling five systems by hand.

Your books and your stock disagree

Every document is keyed four times

Currency and VAT live in a spreadsheet

No audit trail across the business

Four apps.One login. One ledger.

Finance & General Ledger

Payables & Receivables

Supply Chain & Inventory

Commerce & Sales

Multi-currency & Tax

Platform & Analytics

Up and runningin an afternoon.

Create your workspace

Bring your operations in

Everything posts to one ledger

Production-grade.Built to be trusted with your books.

Put your whole businesson one ledger.

From purchase order
to posted journal entry.

Four apps.
One login. One ledger.

Up and running
in an afternoon.

Production-grade.
Built to be trusted with your books.

Put your whole business
on one ledger.

From purchase order
to posted journal entry.

Four apps.
One login. One ledger.

Up and running
in an afternoon.

Production-grade.
Built to be trusted with your books.

Put your whole business
on one ledger.