What does set sig verification to 0 mean? I still don't understand what you are trying to do. Do you want to prevent the signature screen from showing? Do you want to reject the signature challenge? If you want to reject the signature challenge then you need to set the autoAcceptSignature flag to false on your SaleRequest. Then to verify you got the challenge you need to add an onVerifySignatureRequest handler to your ICloverConnectorListener, in that handler you can call ICloverConnector.rejectSignature(verifySignatureRequest) to reject the payment.