diff --git a/dmp-backend/core/src/main/java/eu/eudat/repository/TransformerRepository.java b/dmp-backend/core/src/main/java/eu/eudat/repository/TransformerRepository.java
index a06bcbe2c..d74f1befd 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/repository/TransformerRepository.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/repository/TransformerRepository.java
@@ -9,6 +9,7 @@ import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
 import org.springframework.web.reactive.function.client.WebClient;
+import reactor.core.publisher.Mono;
 
 
 public class TransformerRepository implements FileTransformerClient {
@@ -21,27 +22,32 @@ public class TransformerRepository implements FileTransformerClient {
 
     @Override
     public FileEnvelopeModel exportDmp(DmpModel dmpModel, String format) {
-        return transformerClient.post().uri("/export/dmp", uriBuilder -> uriBuilder.queryParam("format", format).build()).bodyValue(dmpModel).header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE).accept(MediaType.APPLICATION_JSON).exchangeToMono(mono -> mono.bodyToMono(FileEnvelopeModel.class)).block();
+        return transformerClient.post().uri("/export/dmp", uriBuilder -> uriBuilder.queryParam("format", format).build()).bodyValue(dmpModel)
+                .exchangeToMono(mono ->  mono.statusCode().isError() ? mono.createException().flatMap(Mono::error) : mono.bodyToMono(FileEnvelopeModel.class)).block();
     }
 
     @Override
     public DmpModel importDmp(FileEnvelopeModel fileEnvelope) {
-        return transformerClient.post().uri("/import/dmp").bodyValue(fileEnvelope).header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE).accept(MediaType.APPLICATION_JSON).exchangeToMono(mono -> mono.bodyToMono(DmpModel.class)).block();
+        return transformerClient.post().uri("/import/dmp").bodyValue(fileEnvelope)
+                .exchangeToMono(mono ->  mono.statusCode().isError() ? mono.createException().flatMap(Mono::error) : mono.bodyToMono(DmpModel.class)).block();
     }
 
     @Override
     public FileEnvelopeModel exportDescription(DescriptionModel descriptionModel, String format) {
-        return transformerClient.post().uri("/export/description", uriBuilder -> uriBuilder.queryParam("format", format).build()).bodyValue(descriptionModel).header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE).accept(MediaType.APPLICATION_JSON).exchangeToMono(mono -> mono.bodyToMono(FileEnvelopeModel.class)).block();
+        return transformerClient.post().uri("/export/description", uriBuilder -> uriBuilder.queryParam("format", format).build()).bodyValue(descriptionModel)
+                .exchangeToMono(mono ->  mono.statusCode().isError() ? mono.createException().flatMap(Mono::error) : mono.bodyToMono(FileEnvelopeModel.class)).block();
     }
 
     @Override
     public DescriptionModel importDescription(FileEnvelopeModel fileEnvelope) {
-        return transformerClient.post().uri("/import/description").bodyValue(fileEnvelope).header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE).accept(MediaType.APPLICATION_JSON).exchangeToMono(mono -> mono.bodyToMono(DescriptionModel.class)).block();
+        return transformerClient.post().uri("/import/description").bodyValue(fileEnvelope)
+                .exchangeToMono(mono ->  mono.statusCode().isError() ? mono.createException().flatMap(Mono::error) : mono.bodyToMono(DescriptionModel.class)).block();
     }
 
     @Override
     public FileTransformerConfiguration getConfiguration() {
-        return transformerClient.get().uri("/formats").header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE).accept(MediaType.APPLICATION_JSON).exchangeToMono(mono -> mono.bodyToMono(new ParameterizedTypeReference<FileTransformerConfiguration>() {})).block();
+        return transformerClient.get().uri("/formats")
+                .exchangeToMono(mono ->  mono.statusCode().isError() ? mono.createException().flatMap(Mono::error) : mono.bodyToMono(new ParameterizedTypeReference<FileTransformerConfiguration>() {})).block();
     }
 
 
diff --git a/dmp-backend/core/src/main/java/eu/eudat/service/deposit/DepositClientImpl.java b/dmp-backend/core/src/main/java/eu/eudat/service/deposit/DepositClientImpl.java
index 6089d5b05..2b6aeb4fd 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/service/deposit/DepositClientImpl.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/service/deposit/DepositClientImpl.java
@@ -1,14 +1,21 @@
 package eu.eudat.service.deposit;
 
+import eu.eudat.commonmodels.models.dmp.DmpModel;
 import eu.eudat.depositinterface.repository.DepositClient;
 import eu.eudat.depositinterface.repository.DepositConfiguration;
+import gr.cite.tools.exception.MyApplicationException;
+import gr.cite.tools.logging.LoggerService;
+import gr.cite.tools.logging.MapLogEntry;
+import org.slf4j.LoggerFactory;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatusCode;
 import org.springframework.http.MediaType;
 import org.springframework.web.reactive.function.client.WebClient;
-import eu.eudat.commonmodels.models.dmp.DmpModel;
+import reactor.core.publisher.Mono;
 
 public class DepositClientImpl implements DepositClient {
+    private static final LoggerService logger = new LoggerService(LoggerFactory.getLogger(DepositClientImpl.class));
 
     private final WebClient depositClient;
 
@@ -19,21 +26,21 @@ public class DepositClientImpl implements DepositClient {
 
     @Override
     public String deposit(DmpModel dmpDepositModel, String repositoryAccessToken) throws Exception {
-        return depositClient.post().uri("", uriBuilder -> uriBuilder.queryParam("authToken", repositoryAccessToken).build()).bodyValue(dmpDepositModel).header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE).accept(MediaType.APPLICATION_JSON).exchangeToMono(mono -> mono.bodyToMono(String.class)).block();
+        return depositClient.post().uri("", uriBuilder -> uriBuilder.queryParam("authToken", repositoryAccessToken).build()).bodyValue(dmpDepositModel).exchangeToMono(mono ->  mono.statusCode().isError() ? mono.createException().flatMap(Mono::error) : mono.bodyToMono(String.class)).block();
     }
 
     @Override
     public String authenticate(String code) {
-        return depositClient.get().uri("/authenticate/", uriBuilder -> uriBuilder.queryParam("authToken", code).build()).header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE).accept(MediaType.APPLICATION_JSON).exchangeToMono(mono -> mono.bodyToMono(String.class)).block();
+        return depositClient.get().uri("/authenticate/", uriBuilder -> uriBuilder.queryParam("authToken", code).build()).exchangeToMono(mono ->  mono.statusCode().isError() ? mono.createException().flatMap(Mono::error) : mono.bodyToMono(String.class)).block();
     }
 
     @Override
     public DepositConfiguration getConfiguration() {
-        return depositClient.get().uri("/configuration").header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE).accept(MediaType.APPLICATION_JSON).exchangeToMono(mono -> mono.bodyToMono(new ParameterizedTypeReference<DepositConfiguration>() {})).block();
+        return depositClient.get().uri("/configuration").exchangeToMono(mono ->  mono.statusCode().isError() ? mono.createException().flatMap(Mono::error) : mono.bodyToMono(new ParameterizedTypeReference<DepositConfiguration>() {})).block();
     }
 
     @Override
     public String getLogo() {
-        return depositClient.get().uri("/logo").exchangeToMono(mono -> mono.bodyToMono(String.class)).block();
+        return depositClient.get().uri("/logo").exchangeToMono(mono ->  mono.statusCode().isError() ? mono.createException().flatMap(Mono::error) : mono.bodyToMono(String.class)).block();
     }
 }