Enterprise resource planning (ERP) system implementation

We are converting to a new ERP system on Jan. 1, 2018, to standardize systems and processes throughout our companies. Our new system will strengthen how we do business together.

Key changes

  • Contract numbers will change in some cases.
  • Invoice submission method may change in some cases.
  • Delivery schedule agreements will be required to ensure proper receipt and payment.
  • Purchase orders may be submitted to suppliers via an online portal in some cases.

To facilitate the transition, in addition to email, we will post any actions needed on your part to this web page.


ERP is an integrated business information management system that supports our supply chain, human resources, finance and other functions. We have two systems for these functions – one at Wisconsin Public Service, Peoples Gas, North Shore Gas, Minnesota Energy Resources and Michigan Gas Utilities, and one at We Energies. The We Energies ERP system is from SAP and the other from PeopleSoft. A new version of SAP will consolidate the two systems, allowing us to operate as a combined organization and to reduce maintenance costs.


All suppliers that previously conducted business with any of our companies will be migrated to the new system. You will be able to use our centralized invoice process, starting Jan. 1.


If you have questions about the transition or the new ERP system, send us an email.