Master Vendor File: Best Practices and Setup in Dynamics BC and GP

A Master Vendor File (aka: Vendor Master File, Master Vendor List, or Supplier Master File) is an important part of accounting best practices, particularly where accounts payable is concerned. In this post we answer import questions like, What is a master vendor file, Why is a vendor master file important, and we share some best practices. Finally we will give a brief overview of how to set up your master vendor file in Microsoft Dynamics GP and D365 Business Central.

What is a Master Vendor File?

A master vendor file stores all the information your company has on each of its vendors. It is a complete master record of your suppliers used by the accounts payable department, especially when making payments. In most cases, the supplier master file is the responsibility of the accounts payable department, or sometimes the purchasing department.

Why is a Master Vendor File Important?

A master vendor file is key to your entire accounts payable process. A well managed master vendor file prevents fraud and helps ensure that payments are made correctly without duplication. A poorly managed master vendor file without proper security protocols in place will open a company up to fraud.

5 Reasons Master Vendor File is Critical to Accounts Payable Processes

1. Centralized Vendor Information: All data related to vendors—such as contact details, payment terms, and tax information—is stored in one place, reducing duplication and ensuring accuracy.
2. Integration with Accounts Payable: The Master Vendor File connects with Accounts Payable, making it easy to manage invoices, payments, and vendor balances.
3. Audit and Security: All changes to vendor information should be tracked in your accounting system, supporting audit trails and maintaining data security.
4. Enhanced Reporting and Analysis: Consolidating vendor data allows for easier reporting, allowing insights into vendor performance, purchase volumes, and payment histories.
5. Data Consistency and Compliance: Ensures compliance by providing an audit trail and preventing duplicate entries, supporting accurate vendor reporting and regulatory adherence.

Vendor Master File Maintenance Policy Best Practices?

It is best practice to include more than just payment info in your master vendor file. It may include everything from procurement history to listing goods and services sourced from the vendor, inventory data, payment records and more.

It is very important to include contact info for specific people at the vendor not only so that you have someone to call in case of an emergency, but also so you can verify a vendor change of address as this is a common source of AP fraud.

A common fraud practice associated with master vendor files is a situation in which an employee is able to set up a fake vendor and begin to collect payments through the accounts payable department.  Or they may change the address or account info in an existing vendor file.

This is one of the main reasons good master vendor file practices are critical, especially in larger companies that have hundreds of vendors and thousands of monthly invoices.

Best Practices for a Master Vendor File Maintenance

• Ideally, all vendors are set up in the file before the first purchase is made from any vendor.
• Verification and validation of new vendors: A common way to verify a vendor is using W9 to run the vendor’s tax ID  through an IRS TIN match.
• Segregate permissions so users who can update vendor info cannot approve invoices. This greatly reduces internal fraud risk.
• Periodically produce a report that shows all changes made to the vendor master file. This is a key audit practice.
• Regularly deactivate vendors you haven’t used in the last year or so as these vendors are often used by fraudsters.

Master Vendor File in Microsoft Dynamics GP and D365 Business Central

In any enterprise resource planning solution you will find some version of a master vendor file management module. In this post we will give you a quick overview of how to set it up in Dynamics GP and Business Central.

Setting Up Your Vendor Master File in Dynamics GP

1. Access Vendor Setup:
   • Navigate to Purchasing > Cards > Vendor.
   • Select "New" to add a new vendor record.
2. Enter Vendor Details:
   • Input essential vendor details like Vendor ID, Vendor Name, and Address.
   • Specify any unique identifiers or codes for easy reference.
3. Define Payment and Tax Information:
   • Set payment terms, credit limits, and methods (e.g., check, ACH).
   • If applicable, include tax information such as tax registration numbers and rates.
4. Assign Purchasing and Currency Settings:
   • Choose the purchasing defaults for the vendor, such as preferred payment accounts.
   • Define the currency, if working with international vendors.
5. Apply Security Settings:
   • Specify user access permissions to maintain data security and compliance.
   • Restrict or grant access based on role or department.
6. Save and Review:
   • Save the record, and verify that the information is correct.
   • Review the setup by generating a sample report or exporting a list of vendors to ensure proper configuration.

Setting Up Your Master Vendor File in D365 Business Central

1. Access Vendor Setup:
   • Go to Suppliers (or Vendors in some regions) by navigating to Purchasing > Vendors > Vendor List.
   • Select New to add a new vendor.
2. Enter Vendor Basic Information:
   • Input critical details such as Vendor Name, Vendor No., and Primary Contact.
   • Enter the Address and contact details (phone, email) for accurate records and communication.
3. Configure Payment Terms and Method:
   • Set Payment Terms (e.g., Net 30) and Payment Method Code (such as bank transfer or check) under the Invoicing fast tab.
   • Configure Payment Discount and Late Payment Fees if applicable.
4. Tax and Compliance Setup:
   • Add tax information under the Tax Information section, including VAT/Tax Registration Number and applicable Tax Area Code.
   • If the vendor has specific tax exemption statuses, indicate these as well.
5. Assign Purchasing and Currency Preferences:
   • Set the vendor’s default Purchase Currency and Language in the Invoicing section.
   • Configure default purchasing accounts for streamlined expense tracking.
6. Bank Account and Payment Configuration:
   • Add bank account information for vendors if electronic payments are planned. Go to Bank Account to enter account numbers, routing codes, and bank details.
7. Define Security and User Permissions:
   • Control access to vendor information by configuring role-based permissions, limiting access to sensitive information.
8. Save and Validate:
   • Save the new vendor record. Verify data accuracy by checking details and running a sample transaction.

Bonus Tips for Vendor Master File in BC

• Vendor Templates: Business Central allows creating templates to standardize vendor setup across departments or locations.
• Vendor Categories: Use categories or dimensions for easier reporting and segmentation, helpful in reporting on specific vendor groups.

These setup steps ensure efficient vendor management and facilitates clear, standardized processes for purchasing and accounts payable in Dynamics 365 Business Central and Dynamics GP

Fidesic Vendor Sync

With Fidesic, your vendor data is synched based on your vendor records in Dynamics GP or Business Central. Any updates or changes to your ERP vendor records will automatically be reflected in Fidesic and cannot be overridden from inside Fidesic. This means that whatever procedures and protocols you have set up for your ERP system, Fidesic will follow.

Conclusion

A master vendor file is a core part of your accounting processes. It is key to paying bills accurately and on time while reducing duplications and preventing fraud. When using Microsoft Dynamics GP or Business Central, some of the tips and best practices listed above can help set your accounts payable department up for success. If you are using an accounts payable add on product, it is important that the integration functions properly so the best practices you've worked are to set up in your ERP cannot be overridden by the third party automation solution.