Suppliers: Whistl shipping integration

In order to create Whistl labels in Avasam, the shipping provider must be integrated and services added

This help article is written for our suppliers and may not be relevant if you are an Avasam seller. To access seller-specific articles, please follow this link.

Avasam can be integrated with one or more Whistl shipping accounts to print shipping labels for orders when they are dispatched.

The list of shipping integrations has 4 columns:

  1. The logo for each shipping provider.
  2. The type of shipping integration.
  3. The name of the specific shipping integration.
  4. The status of the integration (yes/blue is enabled, no/grey is disabled).

Adding a new integration

  1. In ‘settings’, select ‘shipping integrations’.
  2. Click the add shipping provider button.
  3. Click on the add button next to the Whistl description.
  4. Enter the name for this integration then click ‘next’ to continue.
  5. This will bring up the configuration screen. The address in this screen will be shown on your shipping labels.
  6. Fill in all relevant details then click ‘next’.
  7. This will bring up another configuration screen where you should enter all relevant details from your Whistl account.
  8. Click ‘next’ to continue and bring up a third configuration screen where you should add measurement details for your packages.
  9. If you don’t specify the weight of any inventory items, enter a weight value that Avasam will send to Whistl when requesting a label in the default weight field.
  10. Click ‘next’.
  11. Avasam can automatically submit manifests for your parcels at the end of each day. If you wish to submit manifests manually, then check ‘no’ against ‘automatically submit manifest’.
  12. Click ‘next’. You will then be returned to the shipping provider list in Avasam, with a new row added for your new integration.


  • Click ‘cancel’ to return to the list without completing the integration.
  • If you are using Avasam with Linnworks, ensure you use the same units in Avasam and Linnworks for ‘weight’ and ‘dimensions’.

    Disable shipping integration

    When you create a new shipping integration, it is automatically enabled and active.

    To disable the integration to stop it being available for use:

    1. In ‘settings’, select ‘shipping integration’.
    2. Find the shipping provider you wish to disable.
    3. Click the status switch to toggle it from yes/active to no/disabled.

    Enable shipping integration

    When you create a new channel integration, it is automatically enabled and active. A user with access permissions may temporarily disable it.

    To re-enable the integration to resume downloading orders and updating listings:

    1. In ‘settings’, select ‘shipping integration’.
    2. Find the shipping provider you wish to enable.
    3. Click the status switch to toggle it from no/disabled to yes/active.

    Remove channel integration

    If you no longer wish to have Avasam print shipping labels for a provider, it can be easily removed. Once deleted, you will need to recreate the integration from scratch should you choose to re-use it.

    To remove a channel integration:

    1. In ‘settings’, select ‘shipping integration’.
    2. Find the shipping provider you wish to remove and click its name to open it.
    3. Click the red ‘remove account’ button to remove the integration, then click ‘OK’.
    4. You will be returned to the list of shipping providers.
    • Click ‘cancel’ if you decide to not delete the integration.

      Update or verify channel integration

      If Avasam is having issues printing labels correctly, your settings can be checked using the following steps:

      1. In ‘settings’, select ‘shipping integration’.
      2. Find the shipping integration you want to check and click its name to open it.
      3. Click the reauthorise button to open the window below.
      4. Check the values are correct then click ‘save’ to apply any updates or changes.
      5. You will then be returned to the list of shipping integrations.
      • Click ‘Cancel’ if you decide to not change/update the integration.

        Shipping services

        To use Whistl with Avasam, you must also add the specific shipping services you wish to print labels for (such as next day or signed for delivery). As you will have already signed an agreement with Whistl, you will have selected the services you want to use and know how much each label will cost.

        To specify particular shipping services: 

        1. In ‘settings’, select ‘shipping integration’ and find Whistl.
        2. To open the integration, click the name.
        3. Click ‘shipping services’ to expand the list of available shipping services.
        4. Select an available shipping service and click ‘add’, before clicking 'save'.
        • Click ‘cancel’ if you decide not to add the shipping service.

          Deleting a shipping service

          If you no longer want to use a shipping service, then it can be removed from Avasam.

          To delete a shipping service:

          1. In ‘settings’, select ‘shipping integration’.
          2. Locate the shipping integration you want to check (such as Whistl).
          3. To open the integration, click its name.
          4. Click ‘shipping services’ to expand the list of available shipping services.
          5. Select the relevant shipping service and click the ‘x’ to the right of the service to delete it. Click ‘save’ to apply these changes.

          • Click ‘Cancel’ if you decide not to delete the service.