--- title: CustomerUpdateInput - Customer API description: The input fields to update a customer's personal information. api_version: 2025-01 api_name: customer type: input-object api_type: graphql source_url: html: >- https://shopify.dev/docs/api/customer/2025-01/input-objects/CustomerUpdateInput md: >- https://shopify.dev/docs/api/customer/2025-01/input-objects/CustomerUpdateInput.md --- # Customer​Update​Input input\_object The input fields to update a customer's personal information. ## Fields * first​Name [String](https://shopify.dev/docs/api/customer/2025-01/scalars/String) The customer's first name. * last​Name [String](https://shopify.dev/docs/api/customer/2025-01/scalars/String) The customer's last name. *** ## Map No referencing types