Open Zero Copy Connector for ERP, go to create a model, and the first decision you hit is the model type. Platform or ERP. It looks like a minor configuration choice, and it isn't. The type you pick decides what the model can do for the rest of its life, so it's worth understanding the difference before you commit to one.

The short version is that the two differ in whose data structure they follow. A Platform Model maps the ERP's fields onto a platform table you already have, so the data comes through in ServiceNow's standardised shape. An ERP Model follows the ERP's own structure instead, keeping the formats and relationships the source system defines. Most of what matters follows from that one distinction, including which operations each one supports.