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# Create invoices

> How to create and push invoices or bills to customer accounting platforms using the Merge Accounting API.

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#### See 'sync customers or suppliers' use case

You have already followed the ["Sync Customers or Suppliers"](/merge-unified/use-cases/sync-customers-or-suppliers) use case to ensure the contacts across your database and your customer's accounting system are in sync.

#### Retrieve chart of accounts or items

You'll have to specify a general ledger Account or Item on each line item of the Invoice/Bill. We suggest keeping this data in sync by storing the data in the [**GET** /accounts](https://docs.merge.dev/accounting/accounts/#accounts_list) and [**GET** /items](https://docs.merge.dev/accounting/items/#items_list) endpoints.

#### Build a trigger to create invoices

Identify when to send bills or invoices to your customer's accounting platform. This could be a button or form within your app's frontend or event-based logic.

#### Create an invoice

Submit a [**POST** /invoice](https://docs.merge.dev/accounting/invoices/#invoices_create) request to create the Bill or Invoice in your customer's Accounting platform.

Your customers automatically will be able to receive invoices in their chosen accounting platform!

#### Automatically create invoices in your customers

Integrate today or talk to our sales team to learn how Merge unlocks hundreds of integrations in days - not years.

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