Hi @Matthew ,
The access_code field is optional. You can use it if you want the courier to have a specific way of validating his tasks (pickup and/or drop-off). There are several types of access codes. Depending on the type of access code that you provide the courier may have to:
- Scan a barcode or a QR Code
- Show a barcode, a QR Code, or a text
- Enter a code (e.g for accessing a building)
You can check out this article for more information.
Thank you