What is needed to update a schema after creating it via the API?

To update a schema that has already been created via the API, obtaining the meta:altId from the response during the initial schema creation is essential. This identifier uniquely represents the schema within Adobe Experience Platform and serves as a reference point for any updates or modifications that may be necessary in the future. By using the meta:altId, you can ensure that the specific schema you intend to update is accurately recognized and modified as required.

The other aspects, such as schema version number, container ID, or schema title, may relate to schema management or creation processes but do not serve as the primary means to directly update an existing schema. The meta:altId is vital for targeting the precise schema in subsequent API calls to reflect the intended changes effectively.