QB Issue Resolution:

Go to your Payroll Item List and select your SUI Payroll for edit by double clicking on it.

On the third screen, you can enter your Company experience rates.

I hope this helps. Let us know.

Resolution for Issue 'STATE SUI rate change' available: Yes (Solved).
Source: Intuit Community forum.

STATE SUI rate change: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

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