Currently, there's an ongoing investigation (INV-102765) regarding customers unable to save JE in QuickBooks Online (QBO). I recommend contacting our support team to get the issue you're experiencing investigated further and to check if you're one of the affected users of the said investigation.
Here's How:
Log in to your QBO company.
Select Help (?).
Click Contact Us and choose a way to connect with us:
Start a chat with a support expert.
Get a callback from the next available expert.
In addition, you can check out this article to learn how to reverse a journal entry to swap the debits and credits or delete it entirely: Reverse or delete a journal entry in QBO.
I'll keep an eye out for your reply. If you have further questions about Journal Entries or any QuickBooks-related concerns, feel free to include them in the comments. We're here to assist you 24/7.
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