Statement intake is inconsistent
Statements arrive through different inboxes, portals, contacts, frequencies, entities, and formats, leaving AP unsure which vendors and periods have actually been reviewed.
MANAGED VENDOR RECONCILIATION
ARDEM compares vendor statements with your AP records, identifies missing invoices, credits and payment differences, and manages open items through resolution within a defined recurring workflow.
Start with selected high-volume suppliers or transition a broader recurring statement queue without replacing your ERP or adding internal headcount.
Organizations ARDEM has supported

Managed reconciliation built around your AP environment
ARDEM's vendor statement reconciliation services operate within client-approved ERP, AP mailbox, vendor portal, document-repository, and reporting environments. The workflow is designed around your statement frequency, vendor mix, entities, identifiers, exception types, close calendar, payment cadence, and approval rules, with ARDEM accountable for the agreed day-to-day execution.
An industrial HVAC and mechanical services provider needed more control across shared-mailbox intake, vendor portals, invoice review, ERP entry, quality control, exceptions, and payment-run preparation. ARDEM cleared the historical invoice backlog within the first month, supported 700 to 800 invoices per month, maintained invoice-processing turnaround under seven days, and then added vendor statement reconciliation and missing-invoice follow-up to the recurring managed workflow.
Read the Industrial HVAC AP Case StudyResults shown are from one broader managed AP engagement.
The operating problem
A supplier statement may arrive as one PDF, but reconciling it can require invoice images, credit notes, payment history, remittance, vendor correspondence, purchase-order or receipt support, multiple entities, and client-specific accounting rules. Without a managed queue, exceptions often remain scattered until a payment run, month-end close, or vendor escalation makes them urgent.
Statements arrive through different inboxes, portals, contacts, frequencies, entities, and formats, leaving AP unsure which vendors and periods have actually been reviewed.
Supplier invoice numbers, reference numbers, credits, payments, locations, and entity names may not align with the way activity appears in the client's AP system.
Statements reveal invoices, credit notes, or payment activity that require research, retrieval, validation, vendor follow-up, or client approval before the account can be understood.
Items move between email, spreadsheets, ERP records, and internal teams without one status, evidence trail, next action, or escalation path.
What ARDEM manages
Scope is designed around your supplier population, statement cadence, systems and exception burden. ARDEM owns the agreed execution, with financial responsibilities, access and escalation rules defined for each engagement.
Receive or retrieve supplier statements from approved inboxes, portals, vendors, or repositories; identify the entity and period; normalize files; and prioritize vendors using agreed volume, value, age, or risk rules.
Compare statement invoices, credits, payments, and balances with client AP records using approved identifiers, tolerances, timing rules, and supporting evidence.
Classify unmatched items, research ERP history and source documents, obtain missing invoices or credits when authorized, and route questions or decisions to the correct owner.
Maintain a controlled exception queue with status, evidence, owner, next action, age, and disposition; prepare approved updates; and report recurring causes and unresolved items.
Exception management
Not every difference is an error. Some items are timing differences, pending payments, credits not yet recorded, documents still in approval, or identifiers that do not align. ARDEM applies the client's matching rules, documents the evidence, and routes each exception according to its actual cause.
| Exception type | Typical next action |
|---|---|
| Invoice on statement, not in AP | Locate the invoice, validate the entity and duplicate risk, obtain support if authorized, then route into the approved invoice process. |
| Invoice in AP, not on statement | Check period, entity, status, reversal, dispute, or supplier timing before closing the match. |
| Credit note missing or unmatched | Retrieve and validate the credit, identify the related invoice or account, and route any posting decision for approval. |
| Payment difference | Review payment history, remittance, clearing status, timing, short pay, or supplier application before escalation. |
| Amount or reference mismatch | Compare source documents and identifiers, document the variance, and obtain clarification or client direction. |
| Possible duplicate | Confirm identifiers, amount, date, entity, and processing history; flag the item for review rather than assuming duplication. |
| Disputed or blocked item | Record the reason, supporting evidence, current owner, age, and next action until the client-controlled issue is resolved. |
AP controls and governance
ARDEM manages the agreed reconciliation workflow with documented roles, quality checks and exception ownership. Financial responsibilities, data access, matching tolerances, vendor-contact rules, escalation paths and reporting cadence are defined before steady-state work begins.
Entities, vendors, statement periods, identifiers, tolerances, timing differences, evidence sources, and completion criteria are documented.
Statement matching, exception research, quality review, client approval, payment release, and accounting action follow defined roles.
Matches and exceptions retain enough source support, notes, status, and approval history for review and follow-through.
Volume, completion, aging, exception categories, recurring root causes, open decisions, and escalations are reviewed on a defined cadence.
Managed AP reconciliation services
ARDEM's managed vendor statement reconciliation service combines trained AP specialists, practical data extraction and matching support, documented procedures, quality review, exception ownership, vendor follow-through, reporting, and governance. The engagement is defined around an operating scope and managed-service fee rather than undifferentiated labor hours.
Illustrative workflow dashboard - not an ARDEM software interface.
How it works
Map supplier population, statement cadence, systems, identifiers, evidence sources, exception types, current backlog, close calendar, payment cadence, and internal ownership.
Define scope, priority vendors, matching rules, tolerances, completion criteria, quality checks, permissions, vendor-contact rules, escalations, service measures, and reporting.
Begin with a representative vendor set or priority backlog, validate rules and evidence, resolve operating gaps, and confirm reporting before expanding.
Run the recurring queue, track exceptions and aged items, report performance, address root causes, add vendors or entities, and improve the workflow over time.
Start focused and expand when the workflow is stable
Vendor statements often reveal the upstream work that keeps AP from closing the loop: missing invoices, AP mailbox gaps, incomplete approvals, inconsistent reference data, unresolved vendor inquiries, invoice-processing backlogs, and weak payment-readiness reporting. Clients can begin with statement reconciliation, prove the operating model, and then add adjacent AP activities where ARDEM can create more control and capacity.
Questions buyers ask
Understand the scope, control model, transition approach, and responsibilities before deciding whether managed AP outsourcing fits your organization.
Vendor statement reconciliation compares the invoices, credits, payments, balances, and other open items shown on a supplier statement with the activity recorded in the buyer's accounts payable environment. Differences are researched, documented, routed, and tracked according to approved rules.
ARDEM can manage statement receipt and logging, vendor and period validation, line-item matching, missing-invoice and credit research, payment and remittance review, approved vendor follow-up, exception classification, evidence collection, escalation, resolution tracking, and recurring reporting.
Yes. Many clients can begin with high-volume, high-dollar, high-priority, or exception-heavy suppliers, then expand the population after the matching rules, controls, and reporting are stable.
Yes. ARDEM can operate within client-approved ERP, AP mailbox, portal, file, report, and document-repository environments using documented access, permissions, procedures, and controls. System replacement is not required.
Yes, when vendor communication is included in the documented scope. ARDEM follows client-approved contacts, templates, escalation rules, and authority limits, and records the follow-up in the reconciliation workflow.
ARDEM performs responsibilities explicitly authorized in the statement of work and operating controls. Payment, vendor-master and accounting activities follow the roles, permissions and approval requirements defined for your engagement.
No. This page describes vendor and supplier statement reconciliation against accounts payable records. Bank reconciliation, balance-sheet reconciliation, AP-to-GL integrity, intercompany reconciliation, and other accounting-close services require separate scoping.
Software can extract data and suggest matches, but internal teams still need to manage statement collection, unusual formats, evidence, exceptions, vendor follow-up, approvals, and unresolved items. ARDEM manages the operating workflow and may use practical automation where it improves control and throughput.
A staffing provider supplies labor. ARDEM defines and manages an agreed reconciliation process with documented responsibilities, matching rules, quality controls, exception ownership, reporting, governance, and continuous improvement.
Yes. A historical backlog can be stabilized as part of transition, but the strongest fit is recurring statement volume with an ongoing managed process and a clear path into steady-state operations.
Pricing is configured around a defined statement of work, vendor and statement volume, line-item complexity, systems, evidence sources, exception burden, vendor follow-up, service levels, controls, and reporting. The commercial model is a managed-service fee for the agreed scope rather than simply purchasing labor hours.
Bring estimated monthly statement volume, number of vendors and entities, ERP details, statement sources, current backlog, matching rules, common exceptions, payment and close calendar, reporting requirements, and the AP activities you may want ARDEM to manage.
Take the next step
Review your statement volume, vendor mix, systems, matching rules, recurring exceptions, backlog, approval model, and reporting needs to identify the right starting scope for a managed reconciliation process.