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Move approved billing into Foundation without re-keying it. Tread exports approved invoices and Vendor settlements to Foundation Software’s construction accounting system. The export is file-based — Tread generates a CSV in Foundation’s import format, and your accounting team imports it.

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Prerequisites

  • A Foundation instance with import access.
  • A Tread admin user with the Settlements and Exports permissions.
  • Customer and vendor records already in Foundation. Tread maps by external ID.
  • A Foundation import template confirmed with your accounting team.

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How it works

  1. Approve in Tread — Settlements close once both sides sign off. See Settlements & Driver Pay.
  2. Generate export — From the Settlements page, pick a date range and export to Foundation format.
  3. Map external IDs — Customer and vendor records carry a Foundation customer or vendor code as the external ID.
  4. Import to Foundation — Your accounting team imports the CSV into Foundation’s AR or AP module.
  5. Track exported settlements — Tread marks each exported settlement so the same settlement is not exported twice.

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What flows where

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Setup

1

Open Integrations settings

Go to Settings → Integrations → Foundation.
2

Confirm your Foundation import schema

Have your accounting team share the AR and AP import templates in use.
3

Tag customers and vendors

Open each Customer and Vendor in Tread and enter the matching Foundation code in the External ID field.
4

Run a test export

Export one approved settlement and confirm the import succeeds in Foundation.
5

Set the cadence

Pick a recurring cadence with your accounting team. Tread does not auto-push.

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Limitations

  • Export only. Tread does not pull data back from Foundation.
  • CSV-based, not API-based. No live two-way sync.
  • Customer and vendor records must exist in Foundation before import. Tread does not create them.
  • Foundation import errors surface in Foundation, not Tread.
  • Custom configurations may need a one-time mapping review with the Tread team.

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Troubleshooting

Foundation rejects rows on import
  1. Read the Foundation import log to find rejected rows.
  2. Match each row to the Tread settlement using the invoice number.
  3. Fix the missing field (often a job code or external ID) and re-export.
Duplicate invoice in Foundation
  1. Tread’s export log shows which settlements were in each file.
  2. Avoid overlapping date ranges on subsequent exports.
  3. Delete the duplicate in Foundation if needed.
External ID mismatch
  1. Pull the Foundation customer or vendor list.
  2. Reconcile against Tread external IDs and update Tread to match.
  3. Re-export.