pointOfSaleInformation. emv.cardholderVerificationMethodUsed {#pos-info-emv-cardholder-verification-method-used}
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Cardholder verification method (CVM).  
This field specifies the method that was used to verify the cardholder's identity.  
Possible values:

* `0`: No verification
* `1`: Signature
* `2`: PIN
* `3`: Cardholder device CVM (CDCVM)---available only on the `Barclays` processor
* `4`: Biometric
* `5`: OTP

This field is available only for `Visa Acceptance Solutions` integrations and the `Barclays` processor.

Specifications {#pos-info-emv-cardholder-verification-method-used_Specifications}
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* **Data Type:** Integer
* **Data Length:** 1

Mapping Information {#pos-info-emv-cardholder-verification-method-used_Mapping}
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* **REST API Field:** pointOfSaleInformation.emv.cardholderVerificationMethodUsed
* **SCMP API Field:** cardholder_verification_method
* **Simple Order API Field:** ccAuthService_cardholderVerificationMethod