title: This merchant is not enabled for Google Pay on Test environment
body: <p>I'm trying to implement a payment request for google pay natively on Android for a custom merchant and I'm receiving this error:</p>
  
  <p><code>This merchant is not enabled for Google Pay</code>.</p>
  
  <p>When I tried to resolve what exception is thrown I found this:</p>
  
  <pre><code>com.google.android.gms.common.api.ResolvableApiException: 6: BuyFlow UI needs to be shown.
  at com.google.android.gms.common.internal.ApiExceptionUtil.fromStatus(Unknown Source:3)
  at com.google.android.gms.wallet.AutoResolveHelper.zza(com.google.android.gms:play-services-wallet@@18.0.0:18)
  at com.google.android.gms.internal.wallet.zzy.zza(com.google.android.gms:play-services-wallet@@18.0.0:4)
  at com.google.android.gms.internal.wallet.zzt.dispatchTransaction(com.google.android.gms:play-services-wallet@@18.0.0:63)
  at com.google.android.gms.internal.wallet.zza.onTransact(com.google.android.gms:play-services-wallet@@18.0.0:13)
  at android.os.Binder.execTransact(Binder.java:731)
  </code></pre>
  
  <p>And my request looks like this:</p>
  
  <pre><code>{
     "apiVersion":2,
     "apiVersionMinor":0,
     "allowedPaymentMethods":[
        {
           "type":"CARD",
           "parameters":{
              "allowedAuthMethods":[
                 "PAN_ONLY",
                 "CRYPTOGRAM_3DS"
              ],
              "allowedCardNetworks":[
                 "AMEX",
                 "MASTERCARD",
                 "VISA"
              ]
           },
           "tokenizationSpecification":{
              "type":"PAYMENT_GATEWAY",
              "parameters":{
                 "gateway":"gateway",
                 "gatewayMerchantId":"124185"
              }
           }
        }
     ],
     "transactionInfo":{
        "currencyCode":"PLN",
        "totalPriceStatus":"FINAL",
        "totalPrice":"2.00"
     },
     "merchantInfo":{
        "merchantId":"9876143410",
        "merchantName":"Test Merchant",
        "merchantOrigin":"localhost"
     }
  }
  </code></pre>
  
  <p>The issue is that I'm using a TEST environment so I don't see why this message should be shown at all. </p>