diff --git a/src/main/kotlin/dev/dnpm/etl/processor/output/KafkaMtbFileSender.kt b/src/main/kotlin/dev/dnpm/etl/processor/output/KafkaMtbFileSender.kt
index 9448e29..e7f9769 100644
--- a/src/main/kotlin/dev/dnpm/etl/processor/output/KafkaMtbFileSender.kt
+++ b/src/main/kotlin/dev/dnpm/etl/processor/output/KafkaMtbFileSender.kt
@@ -50,7 +50,7 @@ class KafkaMtbFileSender(
             }
         } catch (e: Exception) {
             logger.error("An error occurred sending to kafka", e)
-            MtbFileSender.Response(RequestStatus.UNKNOWN)
+            MtbFileSender.Response(RequestStatus.ERROR)
         }
     }
 
@@ -79,7 +79,7 @@ class KafkaMtbFileSender(
             }
         } catch (e: Exception) {
             logger.error("An error occurred sending to kafka", e)
-            MtbFileSender.Response(RequestStatus.UNKNOWN)
+            MtbFileSender.Response(RequestStatus.ERROR)
         }
     }
 
diff --git a/src/test/kotlin/dev/dnpm/etl/processor/output/KafkaMtbFileSenderTest.kt b/src/test/kotlin/dev/dnpm/etl/processor/output/KafkaMtbFileSenderTest.kt
new file mode 100644
index 0000000..14bdd5d
--- /dev/null
+++ b/src/test/kotlin/dev/dnpm/etl/processor/output/KafkaMtbFileSenderTest.kt
@@ -0,0 +1,169 @@
+/*
+ * This file is part of ETL-Processor
+ *
+ * Copyright (c) 2023  Comprehensive Cancer Center Mainfranken, Datenintegrationszentrum Philipps-Universität Marburg and Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package dev.dnpm.etl.processor.output
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import de.ukw.ccc.bwhc.dto.*
+import dev.dnpm.etl.processor.config.KafkaTargetProperties
+import dev.dnpm.etl.processor.monitoring.RequestStatus
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.ExtendWith
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.MethodSource
+import org.mockito.ArgumentMatchers.anyString
+import org.mockito.Mock
+import org.mockito.junit.jupiter.MockitoExtension
+import org.mockito.kotlin.*
+import org.springframework.kafka.core.KafkaTemplate
+import org.springframework.kafka.support.SendResult
+import java.util.concurrent.CompletableFuture.completedFuture
+import java.util.concurrent.ExecutionException
+
+@ExtendWith(MockitoExtension::class)
+class KafkaMtbFileSenderTest {
+
+    private lateinit var kafkaTemplate: KafkaTemplate<String, String>
+
+    private lateinit var kafkaMtbFileSender: KafkaMtbFileSender
+
+    private lateinit var objectMapper: ObjectMapper
+
+    @BeforeEach
+    fun setup(
+        @Mock kafkaTemplate: KafkaTemplate<String, String>
+    ) {
+        val kafkaTargetProperties = KafkaTargetProperties("testtopic")
+        this.objectMapper = ObjectMapper()
+        this.kafkaTemplate = kafkaTemplate
+
+        this.kafkaMtbFileSender = KafkaMtbFileSender(kafkaTemplate, kafkaTargetProperties, objectMapper)
+    }
+
+    @ParameterizedTest
+    @MethodSource("requestWithResponseSource")
+    fun shouldSendMtbFileRequestAndReturnExpectedState(testData: TestData) {
+        doAnswer {
+            if (null != testData.exception) {
+                throw testData.exception
+            }
+            completedFuture(SendResult<String, String>(null, null))
+        }.whenever(kafkaTemplate).send(anyString(), anyString(), anyString())
+
+        val response = kafkaMtbFileSender.send(MtbFileSender.MtbFileRequest("TestID", mtbFile(Consent.Status.ACTIVE)))
+        assertThat(response.status).isEqualTo(testData.requestStatus)
+    }
+
+    @ParameterizedTest
+    @MethodSource("requestWithResponseSource")
+    fun shouldSendDeleteRequestAndReturnExpectedState(testData: TestData) {
+        doAnswer {
+            if (null != testData.exception) {
+                throw testData.exception
+            }
+            completedFuture(SendResult<String, String>(null, null))
+        }.whenever(kafkaTemplate).send(anyString(), anyString(), anyString())
+
+        val response = kafkaMtbFileSender.send(MtbFileSender.DeleteRequest("TestID", "PID"))
+        assertThat(response.status).isEqualTo(testData.requestStatus)
+    }
+
+    @Test
+    fun shouldSendMtbFileRequestWithCorrectKeyAndBody() {
+        doAnswer {
+            completedFuture(SendResult<String, String>(null, null))
+        }.whenever(kafkaTemplate).send(anyString(), anyString(), anyString())
+
+        kafkaMtbFileSender.send(MtbFileSender.MtbFileRequest("TestID", mtbFile(Consent.Status.ACTIVE)))
+
+        val captor = argumentCaptor<String>()
+        verify(kafkaTemplate, times(1)).send(anyString(), captor.capture(), captor.capture())
+        assertThat(captor.firstValue).isNotNull
+        assertThat(captor.firstValue).isEqualTo("{\"pid\": \"PID\", \"eid\": \"1\", \"requestId\": \"TestID\"}")
+        assertThat(captor.secondValue).isNotNull
+        assertThat(captor.secondValue).isEqualTo(objectMapper.writeValueAsString(mtbFile(Consent.Status.ACTIVE)))
+    }
+
+    @Test
+    fun shouldSendDeleteRequestWithCorrectKeyAndBody() {
+        doAnswer {
+            completedFuture(SendResult<String, String>(null, null))
+        }.whenever(kafkaTemplate).send(anyString(), anyString(), anyString())
+
+        kafkaMtbFileSender.send(MtbFileSender.DeleteRequest("TestID", "PID"))
+
+        val captor = argumentCaptor<String>()
+        verify(kafkaTemplate, times(1)).send(anyString(), captor.capture(), captor.capture())
+        assertThat(captor.firstValue).isNotNull
+        assertThat(captor.firstValue).isEqualTo("{\"pid\": \"PID\", \"requestId\": \"TestID\"}")
+        assertThat(captor.secondValue).isNotNull
+        assertThat(captor.secondValue).isEqualTo(objectMapper.writeValueAsString(mtbFile(Consent.Status.REJECTED)))
+    }
+
+    companion object {
+        fun mtbFile(consentStatus: Consent.Status): MtbFile {
+            return if (consentStatus == Consent.Status.ACTIVE) {
+                MtbFile.builder()
+                    .withPatient(
+                        Patient.builder()
+                            .withId("PID")
+                            .withBirthDate("2000-08-08")
+                            .withGender(Patient.Gender.MALE)
+                            .build()
+                    )
+                    .withConsent(
+                        Consent.builder()
+                            .withId("1")
+                            .withStatus(consentStatus)
+                            .withPatient("PID")
+                            .build()
+                    )
+                    .withEpisode(
+                        Episode.builder()
+                            .withId("1")
+                            .withPatient("PID")
+                            .withPeriod(PeriodStart("2023-08-08"))
+                            .build()
+                    )
+            } else {
+                MtbFile.builder()
+                    .withConsent(
+                        Consent.builder()
+                            .withStatus(consentStatus)
+                            .withPatient("PID")
+                            .build()
+                    )
+            }.build()
+        }
+
+        data class TestData(val requestStatus: RequestStatus, val exception: Throwable? = null)
+
+        @JvmStatic
+        fun requestWithResponseSource(): Set<TestData> {
+            return setOf(
+                TestData(RequestStatus.UNKNOWN),
+                TestData(RequestStatus.ERROR, InterruptedException("Test interrupted")),
+                TestData(RequestStatus.ERROR, ExecutionException(RuntimeException("Test execution aborted")))
+            )
+        }
+    }
+
+}
\ No newline at end of file