I appreciate your quick response to sort out this matter, @mtiemeye.

Getting this fixed is also essential to me to help you set up your QuickBooks Online (QBO) Payroll.

Since you have me, I will share a workaround to complete your setup and enable you to utilize the program. This way, you can use the available features that will benefit or lessen the workload you will need. 

Based on your statement, I can see that there's no way you can get an Employment Security Number (ES Number) as the state of Washington won't provide one. This could be because some states will give only if the employer has submitted any employee's wages.

In your case, you can add zeros on the field to proceed with the setup. Please refer to the format number, which is: 000000000000

Additionally, I added this article for further reference with pulling up payroll reports: Run payroll reports in QuickBooks Online Payroll.

Moreover, you can utilize the memorize report feature in QBO. This way, you can use your previous customization.

Let me know if you have more concerns about setting up payroll. The Community always has your back. Have a good one!