You may need a different digital certificate to be used in Expense than the one held in Payroll, e.g. the system needs to hold one Agent Cert for XD Payroll and one Employer Cert for XD Expense. To do this:
Upload your Payroll digital cert.
Click Core Expense then click Update.
Click Enhanced Reporting Requirements.
Double-click 07 - Expense Company Parameters.
Enter a Company Tax Registration in the override field next to the Expense company.
Click OK.
Double click 05 - Load Digital Certificate.
Enter a Expense Company.
From the drop-down menu, select the Company Tax Registration. This is the registration you entered into the override field.
Enter the certificate password from ROS then click Browse.
Select the ERR digital certificate file from your computer.
Click Load Certificate.
When generating your ERR Submission file both the Company Tax Registration Number and the Payroll Company name will now appear in the Company Tax Registration Number drop-down list. Select the Company Tax Registration Number to generate the file using the Expense digital cert.