Check Existence of Customer Email
This endpoint previously validated extra fields for a particular Company user by email address.
Authentication
AuthorizationBearer
### Authentication header
| Header | Argument | Description |
|:-------|:---------|:------------|
|`Authorization`|`Bearer {{B2B_JWT_TOKEN}}`| You can obtain this token using the steps described in the [REST Storefront API](/developer/docs/b2b-edition/getting-started/authentication#rest-storefront-api) section[...]
Query parameters
storeHash
The unique alphanumeric store hash for the BigCommerce store.
email
The email of the customer to be validated.
extraFieldName
The name of the extra field.
extraFieldValue
The value of the extra field.
Response
OK
code
message
data