Rex

Customization refers to more complex functional requirements such as: (1) creation of custom entities,
(2) custom screens, (3) custom tabs, (4) complex workflow, and (5) additional data fields. Existing screens,
tabs, and entities can normally be customized with relative ease within both on-demand and on-premise
solutions. On-premise or Hosted solutions, however, tend to provide a more effective solution in situations
where additional custom screens, tabs, and entities need to be created from scratch or where complex
workflow orchestration is required. Also, as customers of SaaS providers are typically charged for data over
and above a certain volume, they are well-advised to minimize customizations like adding optional fields to
avoid paying for additional data capacity. Look for a vendor that does not force you to adjust your business
processes due to its technological limitations. Also, be aware of additional charges, such as data volume
overage fees that can eat into your return on investment.