What does this error mean when I attempt to update a fired contractor GraphQL error: GraphQL provider error: Null value for NonNul

Hello, Carla-Rissell. Welcome to the Community.

As an initial troubleshooting step, you can try to refresh your browser page, or you can sign out of your account and then log back in.

If you're still encountering the same error, I highly suggest contacting our Live Support Team to take a closer look at this issue.

To contact them, here's how:

1. Click the (?) Help button in the top-right corner of your QuickBooks Online account.
2. Choose the Assistant tab to get help from the QB assistant, or select the Search tab to enter your question and find Help articles.

Phone support is available on weekdays from 8:00 AM to 7:00 PM. You can request a callback during weekdays from 8:00 AM to 6:00 PM, and a support expert will contact you as soon as possible. Chat support is available weekdays from 8:00 AM to 10:00 PM and weekends from 8:00 AM to 6:00 PM.

If you have further questions about QuickBooks, let us know in the comments.