> ## Documentation Index > Fetch the complete documentation index at: https://docs.imprint.co/llms.txt > Use this file to discover all available pages before exploring further. # Create a new customer session > Creates a new session for a customer with a client_secret that can be passed to the SDK, providing client access to modify their own profile, card, or card/loan application. If required, a new customer will be created to attach this session to. Customer history can be attached to this session and will be included in the customer's profile if created, or attached to the application the customer creates during the session ## OpenAPI ````yaml /api-reference/openapi.yaml post /v2/customer_sessions openapi: 3.1.0 info: title: Public Imprint API version: '2.0' servers: - url: https://dev.sbx.imprint.co description: Imprint public api sandbox security: - basicAuth: [] - bearerAuth: [] paths: /v2/customer_sessions: post: tags: - Customer Sessions summary: Create a new customer session description: >- Creates a new session for a customer with a client_secret that can be passed to the SDK, providing client access to modify their own profile, card, or card/loan application. If required, a new customer will be created to attach this session to. Customer history can be attached to this session and will be included in the customer's profile if created, or attached to the application the customer creates during the session operationId: createSession requestBody: content: application/json: schema: type: object properties: customer_id: type: string description: >- Unique identifier for the Imprint customer, if creating a customer session for a known imprint customer that the id is available for example: AD87A18A-A4BE-49FF-BC46-BF6F0779DBAA partner_customer_id: type: string description: >- The unique identifier for the customer in the partner's system example: CUST_03476998 transaction_amount: type: integer description: >- The current transaction amount, if the session is currently executing a transaction. integer value in the min currency unit (cents for USD) example: 34000 transaction_currency: type: string description: The 3 char currency code of the amount in iso-4217 example: USD customer_history: $ref: '#/components/schemas/CustomerAccountHistory' source: type: string description: The source where the session is initiated metadata: type: object description: Additional linking metadata additionalProperties: true example: store_number: '123' responses: '200': description: Customer session created successfully content: application/json: schema: $ref: '#/components/schemas/CustomerSession' '400': description: Invalid request content: application/json: schema: $ref: '#/components/schemas/InvalidRequestError' components: schemas: CustomerAccountHistory: type: object description: A Customer's account history with the partner properties: email: type: string format: email description: Customer's email address example: customer@example.com phone: type: string description: Customer's phone number in E.164 format example: '+14155552671' first_name: type: string description: The customer's first name example: John last_name: type: string description: The customer's last name example: Doe preferred_language: type: string description: Customer's preferred language code as defined by ISO 639-1 example: en address: $ref: '#/components/schemas/Address' account_tenure: type: integer description: The customer's account tenure with the partner, in months example: 13 ltv_amount: type: integer description: >- The Life Time Value for the customer's account, in the min currency unit (cents for USD) example: 34000 ltv_currency: type: string description: The 3 char currency code of the amount in iso-4217 example: USD loyalty_tier: type: string description: The customer's current loyalty tier example: GOLD account_created_at: type: string description: >- The RFC-3339 timestamp when the customer's account was created with the partner example: '2025-02-13T19:08:07.000Z' transaction_count: type: integer description: >- The number of lifetime transactions the customer has made with the partner example: 100 CustomerSession: type: object description: Represents a session created on behalf of an Imprint customer required: - id - client_secret - expires_at properties: id: type: string example: 2EE24580-B97B-4949-A65C-929CCB9B9B8D description: The unique ID Imprint assigns to the session. client_secret: type: string example: QzMyNzg4QzgtNEUwOS00QkU4LThDMjEtMkU5OUQ3QzkwRDhGCg== description: >- Not to be logged or stored. Provide this one time use token to the Imprint SDK or other client side code to allow the customer access to edit their own account or apply expires_at: type: string description: the RFC-3339 timestamp when the `client_secret` will expire. example: '2025-02-13T19:08:07.000Z' metadata: type: object description: >- Set of key-value pairs for storing additional information about the customer session. additionalProperties: true example: store_number: '123' source: type: string description: The source where the session was initiated example: web_signup InvalidRequestError: type: object properties: path: type: string description: The path of the endpoint returning the error example: /v2/customers details: type: array items: type: string description: The details of the error being returned example: - 'email: must be a well-formed email address' error: type: string description: The category of error being returned example: Bad Request status: type: integer description: The HTTP status code of the error example: 400 timestamp: type: string description: The timestamp that the error occurred example: '2025-01-20T18:18:22.923+00:00' Address: type: object description: Mailing address information properties: street_line1: type: string description: Primary street address example: 123 Main St street_line2: type: string description: Secondary street address (apartment, suite, etc.) example: Apt 4B city: type: string description: City name example: San Francisco state: type: string description: State or province example: CA postal_code: type: string description: ZIP or postal code example: '94105' country: type: string description: ISO-3166-1 alpha-3 Country Code example: USA securitySchemes: bearerAuth: bearerFormat: auth-scheme description: >- Bearer HTTP authentication. Allowed headers-- Authorization: Bearer scheme: bearer type: http ````