If you roll over funds from other employer sponsored deferral plans, you must separately report elective deferrals in that rollover which were made in the current tax year. This helps Guideline track your elective deferrals to ensure you don’t go over your annual deferral limit. Employer-sponsored deferral plans include 401(k) plans, 403(b) plans, SARSEP IRA plans (Salary Reduction Simplified Employee Pension Plans), and SIMPLE IRA plans (Savings Incentive Match Plans for Employees).
You can report these contributions on the Report Outside Contributions section of your Account Settings page.
If you believe you have exceeded your annual contribution limit see our article here on how to correct the issue. Additionally, if you participate in more than one plan you can find more information on combined deferral limits here.