What is Pre-Assign AWB?

Modified on Thu, 4 Sep at 7:19 PM

Pre-assigned AWB (Air Waybill) generation refers to the process where a set of AWB numbers is fetched from the carrier partner’s system and stored in advance within Clickpost’s system. When an order is created, Clickpost picks an AWB from this pre-stored series and includes it in the courier request payload along with other order details.


Once received, the courier is expected to:

  • Map the passed order information to the AWB, and

  • Successfully generate the shipment and corresponding shipping label.



Mechanisms on how we maintain and update the Pre-Assign AWB series.


Different courier partners support different mechanisms for pre-assigned AWB handling. Below are the common approaches:


  1. Manual Upload via Dashboard:

  • The brand can download a list of AWB numbers from the courier partner's panel.

  • These can then be uploaded directly to the Clickpost dashboard for use.

  1. Auto-Fetch via Courier API:

  • Some couriers (e.g., Xpressbees) provide dedicated APIs to fetch AWB series.

  • Clickpost has integrated with such APIs, enabling automatic fetching of new AWBs once the current batch is exhausted.


  1. Range-Based Fetch Logic:

  • A few couriers (e.g., Ekart Logistics) provide a starting and ending AWB number.

  • Clickpost implements logic to fetch “X” AWBs in a batch and keep refreshing the available series based on usage.


Auto-Fetch Frequency

For couriers that support API-based AWB fetching, Clickpost runs a scheduled job every 2 hours to:

  • Check if the AWB Threshold has reached.

  • Fetch and update the series automatically if needed.

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