Unified

Run in Postman Start Free

Sellsy integration

Back to integrations

Overview

Company website:

https://www.sellsy.com

Integration launch date:

August 8, 2026

API Categories:

Accounting E-Commerce Payments HR & Directory Passthrough

API Authorization:

OAuth2 flow

ACCOUNTING CONTACT

End-API object:

company individual

Unified API Methods:

List Get Create Update Remove

Webhooks:

Native

List options:

Readable fields:

company_name created_at emails first_name id identification is_active is_customer is_supplier last_name name telephones updated_at

Writable fields:

name company_name emails identification is_supplier telephones

required fields

ACCOUNTING INVOICE

End-API object:

invoice

Unified API Methods:

Webhooks:

Native

List options:

Readable fields:

balance_amount contact_id created_at currency due_at id invoice_number notes paid_amount posted_at status tax_amount total_amount type url

Writable fields:

ACCOUNTING QUOTE

End-API object:

estimate

Unified API Methods:

Webhooks:

Native

List options:

Readable fields:

contact_id created_at currency expires_at id issued_at quote_number status sub_total_amount tax_amount title total_amount url

Writable fields:

ACCOUNTING CREDITMEMO

End-API object:

creditnote

Unified API Methods:

Webhooks:

Native

List options:

Readable fields:

balance_amount contact_id created_at creditmemo_number currency id notes paid_amount posted_at status tax_amount total_amount

Writable fields:

ACCOUNTING ORDER

End-API object:

order

Unified API Methods:

Webhooks:

Native

List options:

Readable fields:

contact_id created_at currency id posted_at status total_amount type

Writable fields:

COMMERCE ITEM

End-API object:

item

Unified API Methods:

Webhooks:

Native

List options:

Readable fields:

account_id description global_code id is_active name prices taxrate_id type

Writable fields:

PAYMENT PAYMENT

End-API object:

payment

Unified API Methods:

List options:

Readable fields:

contact_id created_at currency id invoice_id notes payment_method reference total_amount type

Writable fields:

ACCOUNTING TAXRATE

End-API object:

tax

Unified API Methods:

List options:

Readable fields:

id is_active name rate

Writable fields:

HRIS EMPLOYEE

End-API object:

staff

Unified API Methods:

List options:

Readable fields:

emails employment_status first_name id image_url language_locale last_name name telephones timezone title

Writable fields:

PASSTHROUGH

Unified API Methods:

POST GET PUT DELETE

List options:

Readable fields:

Writable fields:

Are we missing anything? Let us know

Was this page helpful?