Manual Workday access reviews tend to fail at scale because spreadsheets and ad hoc workflows miss accounts, misreport permissions, and allow excessive access to persist. They also produce weak audit trails, which makes it hard to prove who reviewed what and when. The result is slower remediation, more human error, and a higher chance that compliance gaps survive unnoticed.
Why Manual Workday Reviews Break Down
Manual access reviews fail first at coverage and consistency. Workday environments often contain employee, contractor, delegated admin, integration, and service-related access paths, and spreadsheets rarely keep pace with that moving target. Reviewers may approve based on role names rather than effective permissions, which means toxic combinations, inherited access, and stale exceptions survive the review cycle. The process also depends on individual judgment across many approvers, so the same access may be treated differently from one review to the next.
That creates more than administrative friction. Incomplete reviews weaken the control that is supposed to detect excess privilege, validate business need, and support periodic certification. When the review evidence is scattered across email and spreadsheets, auditability suffers as well, because it becomes difficult to show a clean chain from reviewer to decision to remediation. For teams managing complex identity estates, this is exactly where manual review breaks: the control looks active, but the assurance signal is thin. NHI Management Group’s research shows that only 5.7% of organisations have full visibility into their service accounts, a useful reminder that access review quality depends on knowing what is actually present before asking anyone to certify it. In practice, teams usually discover these gaps only after an auditor, incident, or terminated-user exception forces a closer look.
How the Failure Shows Up in Practice
In day-to-day operation, manual Workday reviews tend to degrade in predictable ways. Reviewers are asked to validate too many accounts in too little time, so they rely on superficial cues such as job title, manager name, or prior approval history. That creates a mismatch between what is being reviewed and what is actually granted. If a user has indirect entitlements through a role, delegated path, or integration dependency, a spreadsheet may record the row as approved even while the effective access remains broader than intended.
The workflow also struggles with remediation. A reviewer can flag an item, but if the finding is not tied to an enforced ticket, owner, and due date, the excess access often persists until the next cycle. That delay matters because access reviews are not just documentation exercises; they are one of the few moments when an organisation can validate whether privileges still match business need. For identity-heavy environments, the control is stronger when it is connected to lifecycle events such as onboarding, transfers, and offboarding rather than run as a separate clerical process. Guidance from OWASP Non-Human Identity Top 10 reinforces the broader point that unmanaged accounts and stale privileges become harder to govern as scale grows, even when the immediate subject is a business application like Workday.
- Review the effective permission set, not just the visible role label.
- Require each exception to carry an owner, rationale, and expiry or remediation date.
- Separate routine certifications from true access exceptions so reviewers do not conflate the two.
- Link review findings to revocation or role correction, otherwise the review is only reporting risk.
When manual processes span multiple approvers, outsourced administrators, and overlapping HR changes, the control tends to break down because no one source of truth reliably captures who approved which access and whether the access was actually removed.
Where Manual Reviews Create the Most Drift
Tighter reviews often increase operational overhead, so organisations have to balance control depth against reviewer fatigue and schedule pressure. The biggest drift usually appears in edge cases: temporary access, emergency elevation, shared admin roles, and accounts that are technically tied to a person but functionally used by a team or process. Those cases are easy to rationalise during a manual review and hard to unwind later.
There is no universal standard for how much judgment should remain manual, but current guidance suggests that anything with repeated exceptions, cross-functional ownership, or frequent changes needs stronger workflow enforcement than a spreadsheet can provide. That includes clear evidence retention, a single decision record, and a defined remediation path when a reviewer marks access as inappropriate. NHI Management Group’s Ultimate Guide to NHIs — Key Challenges and Risks is useful here because it frames the visibility and lifecycle problem that manual certification often misses, even when the subject is a standard enterprise application.
Practitioner takeaway: Manual reviews are most defensible when they are narrow, exception-driven, and backed by a reliable system of record; once they become the primary control for high-change access, they usually produce comfort rather than assurance.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
MITRE ATT&CK address the attack and risk surface, while CIS Controls v8 and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| CIS Controls v8 | 6 — Access Control Management | Manual reviews fail to enforce least privilege and timely removal of excess access. |
| 8 — Audit Log Management | Spreadsheet-based reviews weaken traceability of who approved access and when. | |
| Recommendation — Automate access recertification and revoke inappropriate Workday access promptly. Retain review and remediation evidence in tamper-resistant audit logs. | ||
| NIST CSF 2.0 | PR.AA-05 — Identity Management, Authentication, and Access Control | Workday reviews are an identity governance control that should validate active access. |
| GV.RM-01 — Risk Management Strategy | Manual review gaps create recurring governance risk that needs formal treatment. | |
| Recommendation — Validate current entitlements against business need and remove surplus access. Treat access review failure rates as governance risk and track remediation outcomes. | ||
| MITRE ATT&CK | T1078 — Valid Accounts | Excess or stale Workday access can be abused through valid account misuse. |
| Recommendation — Hunt for over-privileged valid accounts and remove unused or unexpected access. | ||
Related resources from NHI Mgmt Group
- What breaks when WebAPI access reviews are done manually instead of through an automated process?
- What happens when AWS IAM Identity Center access reviews are done manually instead of through automation?
- What breaks when privileged access reviews are done manually across cloud and SaaS systems?
- What breaks when quarterly access reviews are done manually for group-based privileged access?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on September 9, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
