# Accounting agents for field and facility service companies > AI accounting agents for commercial cleaning, window and solar panel cleaning, and other field service companies: supplier bills, invoicing, and collections. - Canonical page: https://procindex.com/field-services Commercial window cleaning, solar panel cleaning, and other route-based service businesses run on thin margins and lots of small transactions. ProcIndex agents code supplier bills to the right site and customer, get invoices accepted by facility managers, and keep collections moving, so the office keeps up as routes grow. **98.1%** of invoices processed without human intervention. Across all customers, January–October 2026. ## What ProcIndex handles - Codes supplier bills (chemicals, equipment, fuel, rentals) to the site, route, or customer - Matches subcontracted crew and supplier invoices to what was ordered and approved - Checks customer invoices against PO numbers and billing requirements before they go out - Follows up on overdue accounts and routes disputes with the service record attached ## Workflows ### Many small supplier bills Captures and codes high volumes of small bills from cleaning-supply, equipment, rental, and fuel vendors without hand keying. ### Site and customer coding Assigns each cost to the customer site, route, or contract it belongs to, so job margin is visible per account. ### Invoices facility managers accept Checks PO numbers, service dates, and site details against what the customer requires, so invoices aren’t rejected weeks later. ### Consistent follow-up Sends reminders on overdue balances, records promises to pay, and escalates disputes with the service record attached. ## Where the back office falls behind A commercial cleaning or solar maintenance company might service hundreds of sites a month. Each visit can generate supplier costs, crew or subcontractor costs, and an invoice to a facility manager who needs a specific PO number on it. None of it is complicated; there is just a lot of it, and it lands on a small office team. The result is usually the same: costs coded to a general account instead of the site, invoices rejected for a missing PO, and collections that only happen when someone has time. ## What changes - Supplier bills arrive coded to site, route, or customer, with duplicates caught - Customer invoices go out with the PO and service details the customer’s AP team checks for - Overdue accounts get followed up on a schedule, not when the office has a spare hour - Owners see margin by customer and site without a month-end spreadsheet ## Connected to your ERP ProcIndex connects to NetSuite, Sage Intacct, and QuickBooks. Coding, approvals, and postings land in your accounting system, which stays the record. ## Questions ### Does ProcIndex work for commercial cleaning and window cleaning companies? Yes. Field and facility service companies use it to code supplier bills to sites and customers, check invoices against customer PO requirements, and follow up on overdue accounts. ### Can it code costs by customer site or route? Yes. It suggests the site, route, or contract for each supplier bill from the PO, the vendor’s history, and the service records you keep, and sends anything uncertain to a reviewer. ### We are on QuickBooks. Does that work? Yes. ProcIndex connects to QuickBooks, NetSuite, and Sage Intacct. ## Related guides - [Getting Invoices Accepted: POs, Portals, Tax, and Registration](https://procindex.com/blog/customer-invoice-requirements.md): What a customer’s AP team checks before it will pay your invoice. - [Collections Aging Review](https://procindex.com/blog/collections-aging-review.md): Reconcile the aging before you chase, and chase the right accounts first. - [QuickBooks Finance Automation](https://procindex.com/blog/quickbooks-finance-automation.md): Avoid duplicate bills and bad coding when automating on QuickBooks. - [DSO Calculator](https://procindex.com/tools/dso-calculator): See how many days of sales are sitting in receivables and why. Book a walkthrough on your own ERP data: https://procindex.com/book-demo --- ProcIndex builds AI accounting agents for construction and manufacturing finance teams. The agents work inside the ERP, which stays the system of record, under the customer’s own approval and matching rules. ProcIndex currently connects to NetSuite, Sage Intacct, and QuickBooks.