question

If you’ve configured the SignatureThreshold, SignatureEntryLocation, or autoAcceptSignature Per-Transaction Settings on the TransactionRequest, check them.

To force the device to take the signature on-screen, the signatureEntryLocation should be set to ON_SCREEN. For Windows, you would use:

pendingSale.TipMode = TipMode.ON_SCREEN_BEFORE_PAYMENT;

To override merchant settings that only ask for a signature when the amount is above a threshold, set the signatureThreshold to 0. This will require a signature for any amount.

pendingSale.SignatureThreshold = 0;

To ensure the onVerifySignatureRequest callback, use:

pendingSale.AutoAcceptSignature = true;

You can also omit this setting altogether, as it defaults to false.

If you haven’t configured these Per-Transaction Settings, signature capture will follow merchant settings. To verify that Signature on Screen is enabled in the merchant settings:

1. Open the Setup app on the Clover device
2. Tap the Payments tab
3. Verify that the Signature entry location is set to On tablet screen
4. Verify that the Signature requirement is set to Always require signature