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Introduction

Horus is an accounting platform for fiduciaries and their client companies in Belgium and Luxembourg. Accountants manage bookkeeping, invoicing and VAT for several client folders from one account.

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Activate Horus

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Partner keys

You can use Chift’s app, or register your own with Horus.

Use Chift's app

Ask your Chift point of contact to activate the connector. No developer account needed.

Use your own app

Register your own integration with Horus (see below). End users see your app’s name during authorization.
1

Request API access

Email developer@horus-software.be with the subject “New Api Integration Request”. Include:
  • the name of your integration
  • a contact person and email address
  • a short description of how and why you intend to use the API
  • the redirect URL:
2

Receive your credentials

Horus reviews the request and, once approved, issues a client_id and client_secret for your integration, used for all your end users.

Activate Horus in your Chift account

In Connectors, enter your client ID and client secret.

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Connector settings

No connector-specific settings.

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Test Horus

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Vendor fees

No vendor fees, for you or your end users.

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Connect Horus

Horus setup guide for end users

The full step-by-step, with screenshots.
Before they start, your end users need:
  • a Horus user, or a Falco user with the accounting link to Horus enabled
To connect, they:
  • name their connection and choose whether to enable analytical data
  • choose the language of their Horus instance (FR or NL)
  • sign in with their Horus or Falco credentials
  • select the file, then the accounting folder(s) to connect
  • if they enabled analytic accounting, optionally choose the Horus cost schema to use by default, and add custom VAT codes. Each code must start with a capital U

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Rate limits

Horus limits its heavy list endpoints to 360 requests per minute per authenticated user. Above that, Horus returns HTTP 429 Too Many Requests with a Retry-After header. The limited endpoints are:
  • account-histories.list
  • customers.outstanding
  • suppliers.outstanding
Chift automatically manages these limits to optimize performance and prevent interruptions. However, once the API rate limit is reached, Chift cannot bypass these limitations.

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Limitations & specificities

  • An invoice number is required unless the invoice is sent as a draft.
  • The invoice number can only contain numbers, up to 2,147,483,647.
  • The due date must be on or after the invoice date.
  • An invoice in a currency other than EUR is only accepted if the Horus folder has multi-currency enabled.
  • An unbalanced invoice must be sent as a draft.
Financial entries can only be created in EUR. The entry number can only contain numbers, up to 2,147,483,647.
The operation number can only contain numbers. Horus does not allow creating cash journals.
Horus has a uniqueness constraint on the client and supplier name. Two contacts cannot share the same name.

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Coverage

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Troubleshooting

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Specific errors for Horus: