App Fees in payment parameters cause cash transactions to fail.

[parkercast]

When an app fee is specified in the payment parameters, it causes the transaction to fail with invalid PaymentParameters if cash is selected as the payment option in the Square prompt.

I would set the AdditionalPaymentMethods parameter to 'keyed,' however, my app uses the tap to pay on iPhone feature, and this solution causes tap to pay to become unavailable. Additionally, TAP_TO_PAY is not available as one of the AdditionalPaymentMethod enum options, despite being one of the options in the ios SDK.

I would be fine with offering just Tap To Pay as an AdditionalPaymentMethod, but I am having issues getting that AdditionalPaymentMethod to work as an added enum via my own patch.

Is there a workaround to make it so the appFee parameter is not processed if cash is chosen as the payment method in the square prompt? And if not, is there a simple way for me to just remove Cash as an additional payment method and allow either Keyed or Tap To Pay?

[parkercast]

Implemented a workaround for my use case by patching a custom AdditionalPaymentMethodType enum that provides KEYED and TAP_TO_PAY but not CASH to PromptParameters.

[jyotikdev]

The Cash + App Fee money issue is fixed and will be shipped in the next MPSDK version for both iOS + Android. Thanks for reporting