What are Approval Dependencies?

Definition

Approval Dependencies are relationships between approval steps that determine when one review, authorization, or business condition must be completed before another can proceed. They establish sequencing within financial and operational workflows, ensuring that approvals occur in the correct order based on transaction attributes, organizational authority, supporting documentation, or policy requirements.

For example, a purchase request may require department approval before procurement review, while a high-value transaction may require finance authorization after the initial business approval. These dependencies connect individual approval activities into a coordinated process rather than treating each approval as an isolated action.

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How Approval Dependencies Work

An approval dependency typically consists of a preceding activity, a dependent activity, and a rule that determines when the dependent activity becomes available. The dependency may be sequential, conditional, parallel, or exception-based. Sequential dependencies require one approval to finish before the next begins, while conditional dependencies activate additional reviewers only when specified criteria are met.

  • Sequential dependency: One approver must complete a review before another approver receives the request.
  • Conditional dependency: An additional approval is triggered when a threshold, department, vendor, or transaction type meets a defined condition.
  • Parallel dependency: Multiple reviewers can assess the same transaction independently before final authorization.
  • Exception dependency: A specialized reviewer becomes involved when validation identifies an exception requiring additional judgment.

A Flexible Workflow can tailor procurement approval paths by department, role, or threshold, allowing organizations to establish dynamic routing while retaining control over approval dependencies.

Approval Dependencies in Procurement

Procurement processes frequently rely on dependencies between requisitions, sourcing activities, purchase orders, and financial authorization. A purchase order may become eligible for approval only after the related requisition has been reviewed, or a higher approval tier may become active when the purchase exceeds a defined spending threshold.

The Purchase Order Approval Process: Policies & Routing 2025 provides a useful framework for understanding approval matrices, delegation of authority, routing, and procurement controls. Mapping these relationships helps organizations maintain clear spend visibility and consistent procure-to-pay authorization.

Dependencies can also reflect organizational structures. A request from one department may require departmental approval first, followed by procurement or finance authorization. This sequencing helps ensure that each reviewer receives the information and context needed for an informed decision.

Approval Dependencies in Accrual and Finance Workflows

Accrual accounting can involve dependencies between preparation, supporting documentation, departmental review, and financial authorization. Agentic AI for Accrual Approval Workflows can support policy-driven routing based on business unit, department, and thresholds, allowing approval relationships to reflect established financial policies.

When employees submit Manual Accruals, the workflow can capture the required accounting information and route the entry through its designated approval sequence before ERP integration. This creates a clear relationship between the person preparing an accrual, the reviewer validating it, and the authority approving the financial treatment.

These relationships are closely related to Workflow Dependencies, where the completion or status of one business activity determines whether another workflow activity can begin. Understanding the dependency structure is especially useful when designing period-end and financial reporting processes.

Vendor and Invoice Approval Dependencies

Vendor processes can contain dependencies between invoice submission, validation, matching, review, and payment authorization. Flexible Vendor Workflows allow approval steps and thresholds to be configured across teams and departments, helping organizations align routing with their operating structure.

A Vendor Portal can provide visibility into invoices, approvals, payments, notifications, and reconciliation activities. When these activities are connected through dependencies, the status of one step can determine which subsequent action becomes available.

During invoice approval, dependencies may connect invoice capture and extraction with validation, purchase order matching, GL coding, exception review, and posting. The Invoice Approval Workflow: AI Automation Guide provides context for connecting these stages from capture and matching through approval and payment, supporting coordinated straight-through processing.

Drivers, Thresholds, and Conditional Dependencies

Approval dependencies can be influenced by financial drivers such as transaction value, cost center, account classification, vendor category, business unit, or budget ownership. Driver Dependencies help explain how one business or financial variable can influence another activity or decision within a workflow.

For instance, a $5,000 departmental purchase might require only the department manager, while a $50,000 purchase could require procurement and finance approval. The dependency is therefore determined by the transaction's financial attributes rather than simply by the existence of the transaction.

In compensation-related processes, Compensation Approval may depend on managerial review, budget availability, or organizational authority. Similar dependency structures can be applied to other finance and business workflows where multiple authorization stages must operate in a defined sequence.

Best Practices for Managing Approval Dependencies

  • Map approval sequences: Identify which activities must occur first and which approvals can operate concurrently.
  • Define trigger criteria: Establish clear thresholds and transaction attributes that activate additional approval steps.
  • Assign ownership: Specify accountable approvers for each stage and maintain appropriate delegation rules.
  • Connect supporting data: Ensure reviewers receive relevant invoices, accounting information, purchase documentation, or other evidence before approval.
  • Monitor workflow status: Track pending, completed, escalated, and exception-based approvals to maintain operational visibility.

Summary

Approval Dependencies define how individual approval activities relate to one another and determine the sequence or conditions under which financial and business decisions progress. They are valuable across procurement, accruals, vendor management, invoice processing, and other finance workflows. By clearly defining sequencing, thresholds, conditional routing, and ownership, organizations can create consistent authorization processes that support financial controls, operational efficiency, and reliable business performance.