An ERP add-on is a software component that provides additional functions for the ERP in use. ERP standard systems can usually be quickly extended by add-ons. An add-on can be introduced together with a new ERP system or can also supplement the existing ERP system at a later date if required. These add-ons may become necessary, for example, when the business model is adapted or changed because the existing ERP system does not yet have these functionalities.
The various ERP add-ons are sometimes designed for only one system from a particular vendor, while other add-ons are suitable for different ERP systems. Some offer niche functions, while other add-ons offer more extensive functions. Common add-ons can be found in the areas of CRM, financial accounting, supply chain management, warehouse management or even human resources.