The DMACC mobile app will ask for your DMACC ID number (90#) and six-character PIN. If the PIN you're using is something you received in a letter or email, it must first be changed in the Web Info System. After changing your PIN, you can use that new PIN on the app.
Log in to myDMACC with you username and password here. After logging in, you will see the Web Info System button on the left side of the page. Click this button.
Once you're in the Web Info System, click the Personal Information tab at the top-left of the page.
A list of links will appear on the left side of the page. You'll see entries for View PIN and Change PIN.
You can click View PIN if you just want to see what it's currently set to.
If you click Change PIN, the process to set your new PIN.