Add, edit, or remove identifiers
To view, edit, or remove existing shipping identifiers:
- Go to Dashboard → Settings → Australia Post shipper identifier.
- View your shipper identifier(s). To take action, click the edit or delete icon next to the identifier.
- Click Save to complete the changes.
To add a new shipping identifier:
- Go to Dashboard → Settings → Australia Post shipper identifier.
- Click Add another identifier.
- Select your Shipper identifier type from the dropdown menu.
- Enter your shipper identifier:
- MLID: 3–5 uppercase alphanumeric characters
- APCN: 10 digits only
- APBCN: 8 digits only
- Click Save shipper identifier.
Note: You can add multiple identifiers of the same type to a single organization (for example, multiple APBCN accounts if you ship through multiple MyPost Business accounts).
How to find your Australia Post shipping identifier
For Parcel Send business customers, your Merchant Location ID (MLID) appears on the screen before logging in.
- It’s shown in the top-right corner.
- In the example below, the MLID is the text following “John Smith –” (for example,
TEST1).

Managing your shipping identifiers
After initial setup, you can add additional Australia Post shipping identifiers, or edit or remove existing ones at any time.