Ory Kratos indeed supports multiple identity schemas, which allows for flexibility in managing different types of users or identities within your system. To choose the appropriate identity schema during registration, you have a few options: 1. Default Schema: Ory Kratos uses a default schema if no specific schema is specified. This is defined in the configuration file as the

default_schema_id

[Identity metadata & traits](https://www.ory.sh/docs/kratos/manage-identities/managing-users-identities-metadata#traits). 2. Multiple Schemas: You can define multiple schemas in your configuration file. Each schema is associated with a specific

schema_id

[Identity metadata & traits](https://www.ory.sh/docs/kratos/manage-identities/managing-users-identities-metadata#traits). 3. Programmatic Selection: In your application logic, you can distinguish between different types of identities and choose the appropriate schema. This can be done using a switch statement based on the

SchemaID

[Identity metadata & traits](https://www.ory.sh/docs/kratos/manage-identities/managing-users-identities-metadata#traits). 4. Ory Network Console: If you're using Ory Network, you can select and change the active schema through the Ory Console [Manage identity schemas](https://www.ory.sh/docs/identities/model/manage-identity-schema). When deciding on which schema to use, consider the following: - The type of data you need to collect from users (e.g., username, email, phone number) - The login identifier you want to use (username, email, or phone number) - Any specific requirements for different user groups (e.g., customers vs. employees) - Privacy and security considerations Remember that changing the active schema can affect existing identities, so it's important to plan your schema strategy carefully from the start [Customize identity schemas](https://www.ory.sh/docs/kratos/manage-identities/customize-identity-schema#choosing-between-username-email-and-phone-number).

I apologize for the confusion in my previous answer. You're right to ask about assigning the appropriate

schema_id

during the registration flow. Let me clarify this based on the information available in the knowledge sources. To assign the appropriate

schema_id

during the registration flow, you have a couple of options: 1. Default Schema: If you don't specify a

schema_id

when creating an identity (either through the Admin API or during a self-service registration flow), Ory Kratos will use the

default_schema_id

defined in your configuration file [Identity metadata & traits](https://www.ory.sh/docs/kratos/manage-identities/managing-users-identities-metadata#traits). 2. Explicit Schema Assignment: When creating an identity through the Admin API, you can explicitly set the

schema_id

for that identity. This is done by including the

schema_id

in the request body when making a POST request to create an identity [Create identities](https://www.ory.sh/docs/kratos/manage-identities/create-users-identities). For example:

json    {      "schema_id": "customer",      "traits": {        "email": "<mailto:user@example.com|user@example.com>"      }    }

However, the knowledge sources don't provide specific information on how to assign a

schema_id

during the self-service registration flow. This might be a limitation of the current documentation or the system itself. If you need to assign different schemas during self-service registration, you might need to: 1. Implement custom logic in your application to determine which schema to use based on the registration context. 2. Use the Admin API to create the identity with the appropriate

schema_id

after collecting the necessary information from the user. For more detailed information on the registration flow and its customization options, you may want to refer to the [User Registration Documentation](https://www.ory.sh/docs/kratos/self-service/flows/user-registration), which is mentioned in several of the knowledge sources but not provided in full detail here. If you need more specific guidance on assigning schemas during self-service registration, I recommend reaching out to Ory's support channels or consulting their more detailed documentation, as the information provided in the current knowledge sources is limited on this specific aspect.