Bank of America – QBDT connection crashes after OAuth; error 88888 in affected company file
I’m using QuickBooks Desktop Accountant 2024 (subscription), Release R21P.
I have multiple company files that use Bank Feeds with Bank of America. QB has prompted me to change my OLB connection from Bank of America - New to Bank of America QBDT. Here is what I’m seeing:
1. In one company file (the one I attempted to migrate):
After disconnecting all accounts from Bank of America - New, I choose Bank of America QBDT as the connection method
OAuth login at Bank of America succeeds
I select the accounts to connect
QuickBooks crashes immediately after the account‑selection step
When I reopen QuickBooks, I try again, and get error 88888:
“All accounts associated with this customer ID have been synced…”
I cannot connect Bank of America QBDT
I also cannot reconnect Bank of America – New
This file is now completely locked out of Bank Feeds
2. In another company file (one I have NOT attempted to migrate):
Bank of America – New still connects normally
It downloads recent transactions without errors
No 88888 message
No crash
No migration attempt was made in this file
3. Clean test file results:
To rule out file corruption, I created a brand‑new test file.
Bank of America – New connects and downloads transactions
Created a 2nd new test file.
Bank of America QBDT still crashes at the same step
Summary of what I’m seeing:
The crash only happens when connecting Bank of America QBDT
The crash happens in both the real file and the clean test file
Other company files that never attempted migration continue to work with Bank of America – New
This suggests the issue is specific to the Bank of America QBDT connection method, not my QuickBooks installation, and not my credentials.
I cannot find any current Community or Support posts acknowledging this behavior.
Are other users seeing the same crash + 88888 lockout when attempting to use Bank of America QBDT?
Any confirmation or escalation would be appreciated.