When placing an order, I get an error saying: Incomplete or invalid.
Check if the username and password for the API-user are correct.
It’s important that for the API user passwords, please do use numbers and letters and no special characters used by the ePDQ system like £ since the ePDQ system will not allow this. The ePDQ system will not accept special characters that are used in code (e.g. £) to prevent someone from injecting bad code and compromising accounts. Alternatively, you could use a symbol like the exclamation mark !. An example password would be something like November5!. We recommend using another and more secure password as this is just an example that you could follow.