How do I sync expense data with ADP in a construction company?

Key takeaways

• ADP expense sync requires API access to Workforce Now or Run, a clean job and cost code master list from your construction ERP, and a mapping table that links each expense type to a specific ADP earnings code.
• Field crews must assign job number, phase, and cost code at the point of capture so expense data flows into ADP with the correct payroll allocation.
• Vergo automates this by syncing coded expenses directly from its platform into both your construction ERP and ADP, proposing job and cost codes by inference from your own accounting structure and history.
• Approval workflows should route by project manager, job, or dollar threshold before launch, and expense submission deadlines must align with ADP's payroll cycle to avoid manual off-cycle adjustments.
• A pilot on one active project with 5–10 field users over two full payroll cycles validates that job allocations and earnings codes post correctly before company-wide rollout.

What you need before configuring the sync

Before connecting any expense platform to ADP, confirm you have admin credentials and API access enabled in ADP Workforce Now or Run — without this, no third-party integration can write data back to payroll records. Export your active job list and cost codes from your construction ERP and remove closed jobs or duplicate codes; stale codes create mapping errors that corrupt payroll allocations. Decide whether expense approvals will route by project manager, by job, or by dollar threshold, because changing this post-launch requires reconfiguring every approval chain. Know what devices your field crews use, since mobile submission behavior differs between iOS and Android and offline capture matters on remote sites. Finally, map your expense submission deadlines to ADP's payroll run schedule so crews know the cutoff — expenses submitted late cannot be included in the current cycle.

How to map expense categories to ADP earnings codes

Each expense type in construction — mileage, per diem, materials, small tools, subcontractor receipts — must map to a specific ADP earnings or deduction code before any data can sync. Export the full list of earnings codes from ADP and build a mapping table that pairs each expense category in your expense platform with the corresponding ADP code. For example, mileage reimbursement might map to earnings code 210, per diem to 215, and material purchases to a project-specific deduction code. Get sign-off from your payroll team on this mapping table before you configure the integration, because mismatches will cause line items to post to the wrong accounts or reject entirely during the sync. Vergo proposes the coding by inference from your own accounting structure and history, including job and cost codes, eliminating the need to maintain keyword lists or mapping tables. Update the mapping table whenever you add a new expense category or ADP changes its earnings code structure.

Connecting your expense platform to ADP

Use your expense platform's ADP connector or a middleware integration tool to establish the data sync between the two systems. Set the sync frequency based on your transaction volume and payroll schedule: real-time sync works for high-volume operations with weekly payroll, while daily batch or per-payroll-cycle sync suits smaller crews with biweekly runs. Configure the integration to pass employee ID, earnings code, job number, cost code, phase, and amount from your expense platform into the corresponding fields in ADP. Test the sync with a small batch of sample transactions before enabling it for live payroll data. Confirm that each field maps correctly and that ADP accepts the data format — common errors include mismatched employee IDs, invalid cost codes, and decimal formatting issues in amount fields. Vergo integrates with every ERP and accounting software, including all major construction systems and ADP, so transactions are ready to code the moment they happen and sync into your accounting or ERP software and payroll system once they clear. Once validated, monitor the sync logs for the first two payroll cycles to catch any edge cases.

A practical example: pilot rollout on one project

Select a mid-size active project with an engaged project manager and 5–10 field users for your pilot. Have the crew submit all expenses — receipts, mileage, per diem — through the expense platform for two full payroll cycles. The project manager reviews and approves each expense, confirming that job codes and cost codes match the project's budget structure. At the end of each payroll cycle, validate that ADP received the correct job allocations and that earnings codes posted to the right accounts in both ADP and your construction ERP. If discrepancies appear, trace them back to the mapping table or the integration configuration and correct them before expanding the rollout. A successful pilot means zero manual corrections in ADP and zero resubmissions due to missing job codes. Once validated, roll out to additional projects in phases, providing mobile-first training focused on receipt capture and job code selection.

Common mistakes that create rework

Skipping the cost code cleanup before go-live imports a messy code list into your expense platform, creating misallocations that require manual corrections in both your ERP and ADP — exactly the double entry you were trying to eliminate. Not involving project managers in approval workflow design leads to bottlenecks or bypasses; get their input during configuration, not after launch. Syncing ADP before your expense platform is stable pushes partial or test data into payroll records, corrupting live payroll runs. Ignoring offline capture for remote job sites causes field crews to abandon digital submission if the app requires a live connection. Misaligning expense submission cutoffs with ADP payroll runs means late expenses miss the cycle and require costly off-cycle adjustments. Finally, failing to train field crews on job code selection generates the most resubmissions and delays. Vergo eliminates many of these pitfalls by proposing job and cost codes automatically, enabling employees to handle everything by text message with no app to download, and showing why each coding was chosen so reviewers confirm in seconds instead of re-coding by hand.

How Vergo handles this

Vergo integrates with every ERP and accounting software, including all major construction systems like Sage, Viewpoint, Procore, Foundation, QuickBooks, and Deltek, as well as ADP. Transactions are ready to code the moment they happen — no waiting for clearing — and once they clear, they sync into your accounting or ERP software and payroll system. Vergo proposes the coding by inference from your own accounting structure and history, including job and cost codes, so new vendors are coded on first sight without maintaining keyword lists or mapping tables. Every coding shows why it was chosen, so a reviewer confirms in seconds instead of re-coding by hand. Employees handle everything by text message — no app to download, no portal login — and Vergo chases missing receipts itself. Approval workflows are optional and fit how you already control spend: route by GL account, by amount, or by project, or skip approval flows entirely and let policy flags catch only what breaks a rule. Card spend, employee reimbursements, and AP invoices run through one coding model — same coding, same review, one reconciliation.

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