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The error 20102 you received usually happens when you sign up for a Direct Deposit (DD) and the EIN (Employer Identification Number) is already associated with an old DD account.
To isolate this, I recommend getting in touch with our support team. They can securely check your account and further help you to fix this. You can connect with them by going through these steps:
In your QuickBooks Desktop (QBDT):
Also, I recommend checking our Help articles page for reference in case you want to learn some best practices in managing your QBDT.
Do post here anytime you need further help. The Community is always here back you. Have a great day and stay safe.