The accounts payable automation market is on a sharp growth trajectory, expected to reach $4.8 billion globally by 2028 according to Mordor Intelligence, driven by mid-market and enterprise companies seeking to eliminate paper-based invoice processing, reduce payment errors, and accelerate vendor payment cycles. But the complexity that makes AP automation valuable also makes implementation challenging: clients must configure approval workflows, onboard supplier portals, integrate with ERP systems like SAP or NetSuite, and train finance teams — all under the watchful eye of a vendor community that expects fast, transparent communication.
Virtual assistants are emerging as a critical operational layer within AP automation companies, bridging the gap between technology deployment and client and vendor satisfaction.
Client Onboarding: Reducing Time-to-Live
A 2025 study by Ardent Partners found that AP automation implementations that exceed 90 days have a 34% higher early-churn rate than those completed within 60 days. Speed matters — and speed requires coordination that in-house implementation teams often cannot provide at scale.
VAs accelerate onboarding by owning the administrative tasks that slow implementations down: distributing welcome documentation, collecting ERP credentials and chart-of-accounts mapping requirements, scheduling kickoff and configuration calls, tracking document submission milestones, and sending follow-up reminders to client stakeholders who haven't completed required steps. By operating as a dedicated coordination resource, a VA can reduce average onboarding time by 15–25 days.
Vendor Communication Coordination: The Overlooked Workload
AP automation platforms require vendors to register in supplier portals, submit banking information, and accept electronic payment terms — a process that generates substantial outbound and inbound communication. For an AP automation company with 500 clients and an average of 200 vendors per client, vendor onboarding communication is a full-time operation.
VAs manage this workload: sending vendor registration invitations, following up with non-responders, answering common vendor questions about portal navigation and payment schedules, escalating banking verification issues to the appropriate internal team, and maintaining vendor status records in CRM. This systematic approach to vendor communication ensures supplier portals are populated quickly, which directly accelerates client time-to-live.
Implementation Support: Keeping Projects on Track
Even after initial configuration, AP automation implementations require ongoing coordination: approval hierarchy changes, new invoice category additions, ERP sync troubleshooting, and user access updates. According to a Forrester report on B2B SaaS implementation, 62% of post-go-live support requests in fintech applications are administrative rather than technical — meaning they can be handled by a trained VA rather than an engineer.
VAs manage the administrative implementation support queue: logging change requests, communicating timelines to client contacts, tracking open items in project management tools, and confirming completion. For technical issues requiring engineering involvement, VAs ensure that escalations arrive fully documented with account context, reducing resolution time.
Scaling Without Over-Hiring
AP automation companies in growth phases often face a painful choice: hire more implementation managers (expensive, slow to ramp) or accept longer implementation timelines (increases churn risk). VAs offer a third path — providing scalable implementation support capacity that can be ramped in weeks rather than months.
A single experienced VA can support three to five simultaneous client implementations, handling all coordination and vendor communication tasks while the implementation manager focuses on high-judgment configuration and relationship work. At a cost of $1,500–$2,500 per month per VA, this model delivers implementation capacity at a fraction of the cost of a full-time hire.
Vendor Portal Compliance and Documentation
AP automation companies are also subject to vendor compliance requirements around banking data, W-9 collection, and payment terms documentation. VAs support compliance coordination by tracking outstanding vendor documentation, sending collection reminders, and flagging gaps to the internal compliance team before they become audit issues. This proactive documentation management protects the AP automation company's clients from the penalties associated with undocumented vendor payments.
To explore how a virtual assistant can support your AP automation company's onboarding and implementation operations, visit Stealth Agents.
Sources
- Mordor Intelligence, Accounts Payable Automation Market Report, 2025
- Ardent Partners, AP Automation Implementation Benchmarks, 2025
- Forrester, B2B SaaS Implementation Support Report, 2025