Sage 300 AP Automation & Purchase Orders

AP automation for Sage 300 is software that receives vendor invoices, matches them to Sage 300 purchase orders and delivery records, codes them to the right job and cost code, routes them for approval, and posts them into Sage 300 without manual data entry. Field Materials provides AP automation and purchase order approvals for Sage 300, handling the work before a transaction reaches your accounting system.

Sage 300 does not includes AP automation and 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 300 purchase order and what actually arrived, and only verified, coded records post to Sage 300.

Field Materials reads every line of the invoice, matches it to the Sage 300 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 300 job budget while the job is still running.

Yes — Field Materials matches each invoice line against both the Sage 300 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 300. This is a true three-way match, not a header-total check.

Yes. Field Materials supports connecting multiple companies within a single Sage 300 instance. You can assign users to specific Sage 300 companies, allowing each user to switch between the companies they have access to while working in Field Materials.

Yes. Field Materials controls who approves purchase orders and invoices before anything posts to Sage 300, 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 300
• 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 300
• 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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Field Materials matches your existing Sage 300 conventions rather than forcing new ones. Supported customizations include:

• Custom PO names written into Sage 300 (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 300 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 300 on approval

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