diff --git a/docs/bugs/smart_flank_upload_results_rules.md b/docs/bugs/smart_flank_upload_results_rules.md
new file mode 100644
index 0000000000..41cc0e25fd
--- /dev/null
+++ b/docs/bugs/smart_flank_upload_results_rules.md
@@ -0,0 +1,25 @@
+# Smart Flank rules of validation result types
+
+Flank trying to avoid override smart-flank-gcs-path by different JUnit report type. That's means: 
+
+1. If user select in ```smart-flank-gcs-path``` command FulJUnitResult.xml and flag ```--full-junit-result``` is not set Flank fail with the message
+
+    ```txt
+
+    smart-flank-gcs-path is set with FullJUnitReport.xml but in this run --full-junit-result is disabled, please set --full-junit-result flag
+
+
+    ```
+
+2. If user set in ```smart-flank-gcs-path``` command JUnitResult.xml and flag ```--full-junit-result``` is set Flank fails with message
+
+    ```txt
+
+    smart-flank-gcs-path is set with JUnitReport.xml but in this run --full-junit-result enabled, please turn off --full-junit-result flag
+
+
+    ```
+
+3. If ```smart-flank-gcs-path``` is set to a different name than ```JUnitReport.xml``` and ```FullJUnitReport.xml``` flank not validating report type
+
+4. Flank not validating report type if flag ```--smart-flank-disable-upload``` set
diff --git a/test_runner/src/main/kotlin/ftl/args/ValidateCommonArgs.kt b/test_runner/src/main/kotlin/ftl/args/ValidateCommonArgs.kt
index 2af477f600..7433ef0c33 100644
--- a/test_runner/src/main/kotlin/ftl/args/ValidateCommonArgs.kt
+++ b/test_runner/src/main/kotlin/ftl/args/ValidateCommonArgs.kt
@@ -2,6 +2,8 @@ package ftl.args
 
 import ftl.config.Device
 import ftl.config.FtlConstants
+import ftl.reports.FullJUnitReport
+import ftl.reports.JUnitReport
 import ftl.run.exception.FlankConfigurationError
 import ftl.run.exception.FlankGeneralError
 
@@ -26,8 +28,8 @@ private fun List<Device>.throwIfAnyMisspelt() =
 private fun CommonArgs.assertProjectId() {
     if (project.isEmpty()) throw FlankConfigurationError(
         "The project is not set. Define GOOGLE_CLOUD_PROJECT, set project in flank.yml\n" +
-                "or save service account credential to ${FtlConstants.defaultCredentialPath}\n" +
-                " See https://github.com/GoogleCloudPlatform/google-cloud-java#specifying-a-project-id"
+            "or save service account credential to ${FtlConstants.defaultCredentialPath}\n" +
+            " See https://github.com/GoogleCloudPlatform/google-cloud-java#specifying-a-project-id"
     )
 }
 
@@ -54,5 +56,13 @@ private fun CommonArgs.assertSmartFlankGcsPath() = with(smartFlankGcsPath) {
         count { it == '/' } <= 2 || endsWith(".xml").not() -> throw FlankConfigurationError(
             "smart-flank-gcs-path must be in the format gs://bucket/foo.xml"
         )
+
+        smartFlankDisableUpload.not() && contains("/${FullJUnitReport.fileName()}") && fullJUnitResult.not() -> throw FlankConfigurationError(
+            "smart-flank-gcs-path is set with ${FullJUnitReport.fileName()} but in this run --full-junit-result is disabled, please set --full-junit-result flag"
+        )
+
+        smartFlankDisableUpload.not() && contains("/${JUnitReport.fileName()}") && fullJUnitResult -> throw FlankConfigurationError(
+            "smart-flank-gcs-path is set with ${JUnitReport.fileName()} but in this run --full-junit-result enabled, please turn off --full-junit-result flag"
+        )
     }
 }
diff --git a/test_runner/src/test/kotlin/ftl/cli/firebase/test/android/AndroidRunCommandTest.kt b/test_runner/src/test/kotlin/ftl/cli/firebase/test/android/AndroidRunCommandTest.kt
index ae3e4d59c7..a716577726 100644
--- a/test_runner/src/test/kotlin/ftl/cli/firebase/test/android/AndroidRunCommandTest.kt
+++ b/test_runner/src/test/kotlin/ftl/cli/firebase/test/android/AndroidRunCommandTest.kt
@@ -4,6 +4,7 @@ import com.google.common.truth.Truth.assertThat
 import ftl.args.yml.AppTestPair
 import ftl.config.Device
 import ftl.config.FtlConstants
+import ftl.run.exception.FlankConfigurationError
 import ftl.test.util.FlankTestRunner
 import org.junit.Assert.assertEquals
 import org.junit.Rule
@@ -483,4 +484,43 @@ class AndroidRunCommandTest {
 
         assertThat(cmd.config.common.flank.useAverageTestTimeForNewTests).isTrue()
     }
+
+    @Test(expected = FlankConfigurationError::class)
+    fun `should throw if --full-junit-result and JUnitResult xml used`() {
+        val cmd = AndroidRunCommand()
+        CommandLine(cmd).parseArgs("--full-junit-result", "--smart-flank-gcs-path=gs://test-lab-v9cn46bb990nx-kz69ymd4nm9aq/2020-08-26_15-20-23.850738_rtGt/JUnitReport.xml")
+        cmd.run()
+    }
+
+    @Test(expected = FlankConfigurationError::class)
+    fun `should throw if FullJUnitResult xml used and --full-junit-result not set`() {
+        val cmd = AndroidRunCommand()
+        CommandLine(cmd).parseArgs("--smart-flank-gcs-path=gs://test-lab-v9cn46bb990nx-kz69ymd4nm9aq/2020-08-26_15-20-23.850738_rtGt/FullJUnitReport.xml")
+        cmd.run()
+    }
+
+    @Test
+    fun `should not throw if --full-junit-result and smart flank path different than JUnitReport xml`() {
+        val cmd = AndroidRunCommand()
+        CommandLine(cmd).parseArgs("--full-junit-result", "--smart-flank-gcs-path=gs://test-lab-v9cn46bb990nx-kz69ymd4nm9aq/2020-08-26_15-20-23.850738_rtGt/JUnitReportTest.xml")
+        cmd.run()
+    }
+
+    @Test
+    fun `should not throw if --full-junit-result not set and smart flank path different than JUnitReport xml`() {
+        val cmd = AndroidRunCommand()
+        CommandLine(cmd).parseArgs("--smart-flank-gcs-path=gs://test-lab-v9cn46bb990nx-kz69ymd4nm9aq/2020-08-26_15-20-23.850738_rtGt/JUnitReportTest.xml")
+        cmd.run()
+    }
+
+    @Test
+    fun `should not validate if smart-flank-disable-upload set`() {
+        val cmd = AndroidRunCommand()
+        CommandLine(cmd).parseArgs(
+            "--smart-flank-disable-upload",
+            "--full-junit-result",
+            "--smart-flank-gcs-path=gs://test-lab-v9cn46bb990nx-kz69ymd4nm9aq/2020-08-26_15-20-23.850738_rtGt/JUnitReport.xml"
+        )
+        cmd.run()
+    }
 }