Sage 100 Contractor AP Automation & Purchase Orders

Automate POs and AP invoices in Sage 100

Crews order material by phone and text, and someone keys it into Sage 100 Contractor days later. Field Materials moves the whole loop into one place — the crew raises the PO, the packing slip is photographed on delivery, and the invoice is matched against both before it posts. 90% less PO and invoice processing time.

Sage 100 Contractor is the accounting and project management system of record for thousands of small and mid-sized contractors. Field Materials integrates with Sage 100 to automate purchasing and AP data entry.

Sage 100 Contractor
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What Field Materials automates in Sage 100 Contractor

  • Leverage AI to instantly create itemized POs. The system pulls in relevant cost codes, cost types, and vendors from Sage 100.
  • Set up custom approval flows for your POs. Approved POs are posted into Sage 100 either itemized or as a lump sum per cost code.

Best construction purchase order software

Field Materials AI fully automates data entry for purchase orders by reading supplier quote documents, field requisition forms, voice notes, and CSV/Excel files.
  • Vendor invoices are automatically downloaded, matched to the PO, checked against what was delivered, coded to job and cost code, routed for approval, and posted to Sage 100.
  • Contractors on Sage 100 cut AP invoice processing from weeks to days.

Best AP automation software for construction

Field Materials automates 3-way match and eliminates 90% of data entry for AP invoices.
  • Foremen snap photos of packing slips using the mobile app.
  • AI automatically matches the packing slip to the PO, identifies the items in the PO that are being received, and pre-fills received quantities.
  • Field teams check and request general and job-specific inventory using the mobile app.

Leading construction inventory management software

Field Materials inventory management software makes it easy to manage general and job-specific inventory. It has a powerful mobile app and supports QR codes.

How AP invoices flow into Sage 100 Contractor

How AP invoices flow into Sage 100 Contractor
  • Invoice arrives by email. Attachments are auto-downloaded from your inbox and split into individual invoices.
  • AI reads every line. Not just total and date — line items, quantities, unit prices, tax, retainage, and discount terms.
  • Matched to the Sage PO. Line by line: invoiced price against PO price, invoiced quantity against delivered quantity. A real 3-way match, not a header-total check.
  • Exceptions flagged. Off-quote prices, backordered items, quantities above what was received. Kick back the invoice to a vendor or a colleague with questions.
  • Approvals route by your rules. Up to three role-based approvers with escalating dollar thresholds, routed by job or order type. Each person is notified. Full audit trail.
  • Exported to Sage 100 Contractor. Once approved, the invoice is posted to job, cost code, and cost type, against the PO where one exists.

What data syncs with Sage 100 Contractor

Field Materials platform
Jobs
Cost Types
Cost Codes
GL Accounts
Vendors
Equipment
POs
Invoices
Receipts
Sage 100 Contractor

Field Materials AI communicates with Sage 100 through a connector that you install in your office network. Completely secure, no open ports.

Every invoice type, coded correctly

  • PO and subcontract invoices — auto-matched to PO line items at the right quantities
  • Direct job costs — no PO needed; each line coded to its own cost code and cost type
  • Equipment invoices — coded to the right equipment and cost code
  • Overhead — coded to the vendor's default GL account

Because invoices clear in days rather than weeks, project managers see committed, received, invoiced, and paid costs against the Sage 100 budget while the job is still running — not after the period closes.

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FAQ

What is AP automation for Sage 100 Contractor?

AP automation for Sage 100 Contractor is software that receives vendor invoices, matches them to Sage 100 purchase orders and delivery records, codes them to the right job and cost code, routes them for approval, and posts them into Sage 100 without manual data entry. Field Materials provides AP automation and purchase order approvals for Sage 100, handling the work before a transaction reaches your accounting system.

Does Sage 100 already handle AP automation and purchase orders?

Sage 100 Contractor does not include AP automation and it does not capture delivery records from the field or check invoice lines against received quantities. Field Materials adds that layer. Crews photograph packing slips on delivery, each invoice line is matched against both the Sage 100 purchase order and what actually arrived, and only verified, coded records post to Sage 100.

How does Field Materials code invoices to the right job and cost code in Sage 100?

Field Materials reads every line of the invoice, matches it to the Sage 100 purchase order, and applies the job, cost codes from that purchase order. Invoices with no PO are coded from the vendor's default or from past invoices, and a single invoice can be split across several cost codes or jobs. Project managers see committed and actual costs against the Sage 100 budget while the job is still running.

Can Field Materials match invoices against what was actually delivered?

Yes — Field Materials matches each invoice line against both the Sage 100 purchase order price and the quantity actually delivered. Field crews photograph packing slips in the mobile app, which creates the received-quantity record. Price and quantity discrepancies are flagged before the invoice posts to Sage 100. This is a true three-way match, not a header-total check.

Can Field Materials handle multiple companies in Sage 100 Contractor?

Yes. Field Materials supports connecting multiple companies within a single Sage 100 instance. You can assign users to specific Sage 100 companies, allowing each user to switch between the companies they have access to while working in Field Materials.

Does Field Materials support approvals for purchase orders and invoices in Sage 100 Contractor?

Yes. Field Materials controls who approves purchase orders and invoices before anything posts to Sage 100 Contractor, using role-based permissions and optional dollar thresholds.

‍Access control

  • Assign roles to users (project manager, foreman, accountant, and so on)
  • Assign users to projects to control access to specific jobs — accountants, admins and purchasers have access to all jobs
  • Control what each role can do within a job: edit orders, upload delivery slips and receive orders, review invoices, see prices

Purchase orders

  • Up to 3 role-based approvers (Owner, PM, Purchaser) before orders go to vendors and export to Sage 100
  • Optional order amount thresholds — for example, over $1,000 requires PM approval, over $10,000 requires owner approval

Invoices

  • Role-based approvers (Owner, Accountant, PM) control who can approve invoices before they post to Sage 100
  • Optional invoice amount thresholds that notify the designated roles
  • Optional maximum invoice amounts each role can approve

For both, approvers are notified by email, text and in-app, and Field Materials keeps an audit trail of who requested and who approved. Settings can be changed at any time.

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How does Field Materials handle custom configurations for Sage 100 Contractor?

Field Materials matches your existing Sage 100 Contractor conventions rather than forcing new ones. Supported customizations include:

  • Custom PO descriptions written into Sage 100 (e.g. "job number"-"PO number"-"notes")
  • Custom PO numbering schemes
  • Custom invoice descriptions (e.g. "job number"-"PO number"-"invoice number")
  • Lump sum or detailed PO export — orders stay itemized in Field Materials and can post to Sage 100 as a lump sum
  • Master (organization-level) and project-specific cost code
  • Custom sales tax treatment — tax can post as a separate line item against a specific cost code or GL account
  • Custom default payment terms
  • Whether invoices auto-export to Sage 100 on approval

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