Not able to pass CSV file data to call another feature in background

Not able to call one feature file from another when passing the data via CSV. Same works when i directly give in examples.

The below works

Background:
def rspSes = call read('classpath:helpers/createSessionID.feature') {"customerNo": '#(IP_Customer)'}

Scenario Outline: To validate based on different product combinations

    Given path '/v1/sourceAccounts'
    And param paymentType = "PERSONAL"
    And header cus = IP_Customer
    When method get
    Then status <status>

Examples:
      
| IP_Customer | IP_FROM_ACCT | IP_TO_ACCT | AMOUNT | Purpose              | Message                        | status |
| 165942   | 8957         | 1004       | 5.99   | PERSONAL              | dkfkdjfkdjkfjdkjfkdjfkjd       | 200    |

**However, if I change the above examples to read a CSV file. It is not picking the value from CSV. Tried changing {"customerNo": <IP_Customer>}, still didnt work. **

| read("testData.csv") |