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    Changelog

    This changelog records every change to the Omisell APIs, newest first, along with Omisell policy changes that affect developers.
    PageCovers
    🔐 API Security UpgradeIP whitelist and API key expiry
    OrdersOrder APIs
    Returns OrderReturn order APIs
    ProductsProduct, catalogue, stock and serial number APIs
    ShipmentsShipment APIs
    Push mechanismWebhooks
    How to read an entry
    Every entry has the same parts, in this order:
    1.
    Date and title. Dates are DD/MM/YYYY.
    2.
    One sentence on what changed.
    3.
    Action required. "None" means existing integrations keep working. When you do need to change something, it is in a highlighted box.
    4.
    APIs affected.
    5.
    A table of the new or changed fields, then short notes when needed.
    Modified at 2026-11-04 03:57:21
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