As we make changes to our API, we’ll publish below. Changes to the product itself will be published on Product Updates.
Custom Field ID Format
Going forward, all new Custom Fields will share a common ID prefix, cf_,
instead of object type specific prefixes like lcf_ for Lead Custom Fields, and
ccf_ for Contact Custom Fields.
Existing Custom Field IDs will not change, but be advised that we will soon allow existing Custom Fields to become Shared Custom Fields. This means a Shared Custom Field may have an ID prefix previously reserved for another object type. The ID prefix should not be used to infer the type of object associated with the Custom Field.
