Accounts Payable
Announcement:
The Department of Accounts Payable is thrilled to announce a significant initiative designed to enhance efficiency and streamline payment processes for all our valued suppliers. As part of our ongoing commitment to modernization and a direct result of our new Oracle Cloud ERP system implementation, effective October 2025, we are making key changes that will benefit everyone.
Optimizing Payments with ACH
Our primary focus is to optimize the use of Automated Clearing House (ACH) payments for all suppliers (not including one-time payments to jurors, witnesses, etc.). ACH payments offer a faster, more secure, and environmentally friendly method for receiving funds. This initiative will not only accelerate payment processing but also reduce administrative burdens and provide greater visibility into payment status. We encourage all suppliers to transition to ACH for future payments. Detailed instructions on how to enroll in ACH payments are later on this page.
Centralized Invoice Processing
To further improve accuracy and efficiency, we are also centralizing all Accounts Payable operations. Effective October 2025:
- Purchase Order (PO) supplier invoices must be submitted to Wayne County by uploading them in the Oracle Supplier portal: Wayne County Supplier Portal | Engage Wayne County MI
- Non-PO supplier invoices must be submitted directly to the Accounts Payable (AP) department for entry into our new Oracle system.
- Address for paper invoices: Wayne County, Management & Budget, Accounts Payable, 500 Griswold Street, 14th Floor, Detroit, MI 48226
- Please see the “How to get Invoices into Oracle” section below.
This centralization will ensure consistent data entry, better tracking, and a more streamlined approval process
How to get Invoices into Oracle:
Here are the methods that will be available to enter invoices/payment requests into Oracle:
o Manual/direct entry.
- Only AP staff will have this functionality.
o ADFDI Create Invoices Spreadsheet entry. This spreadsheet will need to be populated and emailed to AP for upload into Oracle (Oracle Create Invoices ADFDI Spreadsheet(XLSX, 315KB)).
- The “invoices” tab needs to be completed & returned to AP.
- The “Instructions” tab provides guidance.
o Scanning the invoice directly into Oracle by emailing a pdf copy of the invoice to this production Oracle invoice email: AP_InvoiceScan_prod@waynecountymi.gov.
- The email Subject Line must include “__Dept Code” (double underscore, Code) using the applicable Dept/Elected Office Code.
- See Column C in the Department/Elected Offices codes workbook (Pay Group Short Name(XLSX, 26KB)).
o Supplier portal—Suppliers can upload their own invoices.
- This method is only available to those Suppliers with a PO or BPO ().
Required Invoice Information
To facilitate smooth processing in Oracle, it is crucial that all invoices include the relevant Wayne County department or elected office that received the goods and/or services. This will help us accurately route and process Supplier invoices, preventing delays and ensuring timely payments. Please communicate to your Suppliers that this information must be clearly stated on all future invoices.
These changes are a vital part of our transition to the Oracle Cloud ERP system and are designed to create a more efficient, transparent, and user-friendly experience for all Wayne County suppliers. We appreciate your cooperation and understanding as we implement these enhancements. We are confident that these initiatives will lead to significant benefits for both the municipality and our valued partners.
Frequently Asked Questions
What is Oracle Fusion Cloud?
Oracle Fusion Cloud is a suite of enterprise resource planning (ERP) applications hosted on the cloud, offering integrated business functions such as procurement, financials, project management, and supplier relationship management.
What is the Oracle Supplier Portal?
The Oracle Supplier Portal is a secure, self-service platform that allows Wayne County suppliers to manage transactions such as purchase orders, invoices, profile updates, and payments directly with their Wayne County customers through Oracle Fusion Cloud. Registration for the Supplier Portal is on an invitation-only basis. Suppliers must have a current purchase order with Wayne County to be invited. If you feel that your organization should receive an invitation, please reach out to SupplierPortal@waynecountymi.gov.
Enroll in ACH / EFT
Thank you for your interest in transitioning from payment by check to ACH payment. Below are the forms Wayne County (WC) requires for Suppliers to switch from payment by check to ACH payment. Please return the forms to Wayne County at AP‑ACH@waynecountymi.gov. The email subject line should be “ENCRYPT – ACH Enrollment Request”—to encrypt the attachments which will contain sensitive, confidential information, such as banking credentials.
The Address Book Request form (AB Request form) is only necessary for new Suppliers or Suppliers with changes or updates to information such as name, contact or remit addresses, web address, phone number, etc. Please indicate what WC Department(s)/Elected Office(s) you do business with and return the AB Request form directly to the AP-ACH@waynecountymi.gov email box along with the other completed forms.
Please email AP-ACH@waynecountymi.gov if you have specific questions. Thank you & Wayne County appreciates doing business with you!
✅ ACH Supplier Setup Checklist
- ACH Enrollment Form(PDF, 630KB) - Required for all
- Signed by authorized company representative
- IRS Form W-9(PDF, 138KB) - Required for all
- Required for 1099 reporting and tax compliance
- Address Book Request(PDF, 133KB) - Required for new Suppliers without a PO, NOT required to transition to ACH.
- Collects general supplier info (new or updated)
- Voided Check or Bank Letter - Required for all
- Verifies bank account details
- W-8BEN/W-8BEN-E - Required if foreign
- For non-US suppliers including Canada
- Certificate of Insurance - Required if applicable
- For service vendors or contractors when working onsite at Wayne County locations