When you have multiple ERP systems, each one will require one or more interfaces into the required standard integration points. The more interfaces required, the more time and money are necessary to develop and support them. By exploiting opportunities to develop some level of commonality in the interface designs, you can reduce the number of interfaces or avoid rework later. A detailed discussion on this topic deserves a separate article and is beyond the scope of this post.
Multiple ERP systems deployed across the company also poses a logistical challenge. In a perfect world, sticking to a single but a flexible ERP system that can handle the needs of all sites in one instance is the most desired approach. There are many good ERP solutions that provide a wide scope of functionalities, but they are yet to offer a complete solution without some degree of customizations.
If consolidation is an option, it makes sense to consider an upgrade
(that is to uplift the ERP solutions to a newer version) together with the consolidation. At present, ERP vendors on average issue major releases every two years. Upgrades will help the company keep up with the technology improvements. By combining both projects, you kill two birds with one stone, as businesses would not appreciate having to constantly change their operations to adapt to the functionality offered through the ERP system.
A successful consolidation will almost certainly simplify the day to day operations, automate the inter-company processing, and will provide streamlined reporting. If successful, the outcome will bring very desirable results.
A single system may not always be the most practical way to address an organization’s requirements, since businesses are becoming more complex and are evolving more quickly than ever, they are seeking ways to enhance unique niches to differentiate themselves from competitors.
Best-of-breed solutions provide systems that are built with the depth to address specific functional areas, delivering stronger functionality in that focused area. But this will only wreak the integrations between departments and ultimately end up having interfaces between the best of the breed solutions to reduce manual work.