Key changes in SIGN IT 2026-02-03

Below is an overview of the key changes introduced in the latest SIGN IT API version (SIGN IT 2026-02-03)

Key changes from version 2025-08-12 to 2026-02-03

New required X-Api-Version Header The latest version is 2026-02-03.

**New resource - **Location::BRANCH

Replaces the previous Entity::LOCATION resource.
Represents each operating business location.
Creation is not mandatory if there is only one operating business location and it corresponds to the taxpayer’s legal address.

Note: Upon Taxpayer creation, a Location::HEAD_OFFICE is automatically created and shares the same ID as the Taxpayer.

fiscalization.credentials.tax_id_number is now a required field.

Updated Resource Terminology To improve clarity and consistency, some resources have been renamed: Asset::UNIT → Organization::UNIT Entity::COMPANY/INDIVIDUAL → Taxpayer::COMPANY/INDIVIDUAL Entity::LOCATION → Location::BRANCH

As part of this update, the corresponding endpoints have been updated as follows: /organizations (previously /assets) /taxpayers/locations (previously grouped under the /entities resource and endpoint, now split into two distinct resources with dedicated endpoints)

See this article for details: New Resource Terminology

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