https://docs.oracle.com/en/cloud/paas/api-platform-cloud/apfad/manage-api-entitlements.html#GUID-F11CD88F-F269-41B1-8236-3FC3D62014B1
Understand API Entitlements
An entitlement is the relationship between an API and a Plan that defines how a client application can access the API.
There is a many-to-many relationship between plans and APIs. A given plan can have entitlements to multiple APIs; for example, to group related APIs. A given API can be entitled by multiple plans; for example, to provide different quality of service criteria. Note that two entitlements of the same plan cannot point to the same entire API, or to the same action in an API.

https://docs.oracle.com/en/cloud/paas/process-cloud/user/binding-form-data-controls.html#GUID-CECD2F13-1E1A-457D-8BC8-8D605EEB213B
The background colors displayed for the autocomplete options are:
Green for valid binding names
Red for invalid binding names
Blue for complex binding names (their children may contain valid binding names)
If a control isn't linked to an attribute or if a control is linked to an invalid attribute, an error message is displayed in the Binding field and an error icon is displayed in the canvas. When a control doesn't have a valid binding, any value entered into the control in runtime is not passed on to the form payload.