Greetings, @SWAT518. I'll direct you to the best help for fixing the error about being unable to authenticate the reset code for QB POS needs further internal attention.
There's a need to check your account in a safe environment to ensure that its data are accurate and safe. Considering that, I recommend contacting Merchant Services and raising the specific error you have with resetting your QB POS V19 password.
Here's how if you have a QuickBooks Online (QBO) account:
- Sign in to your QuickBooks Online company.
- Select (?) Help.
- Select the Assistant tab to get help from the QB Assistant, or choose the Search tab to enter your question and find Help articles.
If you have a QuickBooks Desktop (QBDT) account that's connected to your POS, feel free to utilize these steps:
- Go to the Help tab and pick QuickBooks Desktop Help/Contact Us.
- Type in a short description of your issue.
- Then, click Continue.
You can also click this link to contact our support without logging in to your account: Contact Us.
If you wish to learn how to check the status of your customer's payments, check out this article: Learn about funds on hold in QuickBooks Payments.
Once a question pops into your mind about changing your password or any important sign-in details of your POS account, you can always look back here and leave a reply below. Take care, and have a good one.