Approval routing is the process of directing a request to the correct approver or group of approvers based on predefined business rules. Those rules can use information such as department, manager, request type, purchase amount, location, resource owner, risk level, or application sensitivity to determine the correct approval path.
Approval routing answers the question: Who needs to approve this request next? A simple request may always go to one manager. A more advanced workflow can determine the approver dynamically, add extra reviews only when needed, run several approvals in parallel, or escalate the request when the expected approver does not respond.
What is approval routing?
Approval routing sits between request submission and the final business decision. Once a request enters the workflow, routing rules determine who should receive it and whether additional approvals are required.
The simplest approval route is static: every request goes to the same person. More mature processes use dynamic routing so the approval path reflects the actual business context.
A standard application request may go to the employee’s manager. A request for a sensitive system can automatically add the application owner and Security. A request for administrator privileges may require another approval from IT leadership before access is provisioned. This is a common pattern in IT access request approvals.
Why is approval routing important?
The quality of an approval process depends heavily on whether the request reaches the right people at the right time. Poor routing creates delays, unnecessary approvals, inconsistent decisions, and weak governance.
Routing also makes approval workflows easier to scale. When business rules define how approvers are selected, the process becomes less dependent on employees remembering who owns a system, budget, department, or business decision.
Common approval routing methods
Approval routing can be simple or can form part of a broader multi-level approval workflow where several reviewers are selected and coordinated according to the request context.
Every request is sent to the same approver or predefined group. It is simple but becomes difficult to maintain as organizations grow.
The workflow identifies the requester’s manager automatically and sends the request to that person.
Approval is sent to a budget owner, application owner, department head, Security approver, or another role rather than a fixed individual.
Purchase value, discount percentage, risk score, or another threshold determines which approval stages are required.
Approvers review one after another. Later reviewers only receive requests that have passed earlier checks.
Independent reviewers receive the request simultaneously so the workflow does not wait unnecessarily.
The route changes based on request data — for example, sensitive access adds Security while a standard request does not.
If the primary approver does not respond, the request moves to a backup approver, manager, process owner, or another predefined path.
Where is approval routing used?
| Use case | Typical routing logic |
|---|---|
| IT access requests | Manager → Resource owner → IT or Security, with additional routing for sensitive systems or elevated permissions |
| Purchase requests | Manager → Budget owner → Finance, with executive approval added when spend exceeds a threshold |
| Invoice approvals | Route based on department, cost center, PO owner, invoice amount, or exception status |
| Contracts | Business owner → Legal → Finance or Procurement, with specialist review added for non-standard terms |
| Employee onboarding | Manager → HR → IT or Security depending on requested systems, equipment, licenses, and access |
| Document approvals | Route to subject-matter reviewers, Legal, Compliance, brand owners, or executives based on document type |
| Vendor onboarding | Procurement → Finance → Security → Legal, with stages skipped when not applicable |
Manual vs. automated approval routing
Manual routing often works by email: the requester chooses an approver, forwards the request, and then someone decides who should receive it next. That can work for low-volume processes, but it becomes difficult to govern when routing depends on several variables.
| Area | Manual routing | Automated routing |
|---|---|---|
| Approver selection | Requester or administrator chooses manually | Workflow identifies the correct approver from business data |
| Conditional approvals | Someone decides whether another reviewer is needed | Rules add or skip approval loops automatically |
| Parallel approvals | Requests are forwarded manually to several people | Independent reviews can start at the same time |
| Unavailable approvers | Requester discovers the delay and finds someone else | Delegation and escalation rules reroute the request |
| Route maintenance | Instructions and contact lists must be kept up to date | Dynamic lookup can use manager, owner, department, or other current data |
| Auditability | Routing decisions may be buried in emails and chat | The workflow records who received the request, when, and why |
What are the common challenges of approval routing?
The person responsible for a department, budget, application, Shared Drive, or business process may change. Static routing quickly becomes outdated.
Department, amount, requester role, location, resource owner, risk, and request type may all influence the correct route.
Sending every request through every possible stakeholder slows the process and creates approval fatigue.
Important reviews can be skipped when routing depends on an employee remembering that a particular request requires Finance, Legal, Security, or another specialist.
Vacation, role changes, or workload can leave a request stuck unless delegation and escalation paths are defined.
If the approver neither approves nor rejects before the deadline, the workflow needs an explicit path rather than remaining open indefinitely.
Without workflow visibility, employees may not know who currently has the request or whether another approval is still required.
How automation improves approval routing
Approval workflow software can evaluate request data automatically and select the appropriate route without asking the requester to understand the organization’s approval structure.
Use parallel approvals where sequence adds no value
If Finance, Security, and an application owner can review independently, routing them in parallel can reduce elapsed approval time. Sequential routing should be reserved for cases where one decision genuinely depends on an earlier one.
Connect routing with the action after approval
The routing process should not end with a recorded decision. Once the required approval conditions are met, the workflow can continue into provisioning, record updates, document generation, payments, purchase orders, notifications, onboarding, offboarding, or another business action.
How approval routing works in Zenphi
Zenphi can route approval requests based on data available when the workflow runs, allowing teams to build approval logic around the actual requester, resource, amount, risk level, or business context.
A request can begin in Google Forms, Jotform, Typeform, an internal portal, another system, or directly in Google Chat when the workflow is converted into an enterprise AI agent for Google Chat using Zenphi AI Studio.
Zenphi can use workflow data to determine the requester’s manager, department, resource owner, budget owner, application owner, or another approver dynamically.
Routing can change based on request data. For example, a standard request may require manager approval, while a sensitive or high-value request adds Security, Finance, Legal, or executive review.
Dependent decisions can happen one after another, while independent stakeholders can review at the same time.
If an approval expires without an explicit decision, Zenphi can send reminders, reroute to a backup approver, escalate to a manager or process owner, create a follow-up task, or close the request according to policy.
Once the approval conditions are met, Zenphi can act in Google Workspace or connected systems — for example, provision access, update records, generate documents, create or send a purchase order, process a payment, onboard or offboard a user, or update Google Workspace permissions.
Examples of approval routing in practice
Zenphi customer workflows show how routing rules change depending on the business process:
For example, Gordon Food Service uses Zenphi to route employee self-service requests through validation and approvals before Google Workspace administration is performed. SOCAR Malaysia uses structured approval workflows across both Finance and IT access processes. The specific routes differ, but both rely on the same principle: determine the correct decision-maker from the request context and automate what happens after the decision.
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