diff --git a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/DigitalSignatureKmsService.java b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/DigitalSignatureKmsService.java
index 741f1f7ca..ac8a2ff9f 100644
--- a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/DigitalSignatureKmsService.java
+++ b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/DigitalSignatureKmsService.java
@@ -3,16 +3,20 @@ package com.iqser.red.service.persistence.management.v1.processor.service;
 import static com.iqser.red.service.persistence.management.v1.processor.utils.MagicConverter.convert;
 
 import org.springframework.beans.BeanUtils;
+import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Service;
 
 import com.iqser.red.service.persistence.management.v1.processor.client.PDFTronRedactionClient;
 import com.iqser.red.service.persistence.management.v1.processor.entity.configuration.DigitalSignatureEntity;
 import com.iqser.red.service.persistence.management.v1.processor.entity.configuration.DigitalSignatureKmsEntity;
+import com.iqser.red.service.persistence.management.v1.processor.exception.BadRequestException;
+import com.iqser.red.service.persistence.management.v1.processor.exception.InternalServerErrorException;
 import com.iqser.red.service.persistence.management.v1.processor.exception.NotFoundException;
 import com.iqser.red.service.persistence.management.v1.processor.service.persistence.repository.DigitalSignatureKmsRepository;
 import com.iqser.red.service.persistence.service.v1.api.model.dossiertemplate.configuration.DigitalSignatureKms;
 import com.iqser.red.service.persistence.service.v1.api.model.dossiertemplate.configuration.DigitalSignatureType;
 
+import feign.FeignException;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
@@ -30,7 +34,14 @@ public class DigitalSignatureKmsService {
     public DigitalSignatureKmsEntity saveDigitalSignature(DigitalSignatureKmsEntity digitalSignature) {
 
         log.info("Validate digital KMS signature before saving");
-        pdfTronRedactionClient.testDigitalSignatureKms(convert(digitalSignature, DigitalSignatureKms.class));
+        try {
+            pdfTronRedactionClient.testDigitalSignatureKms(convert(digitalSignature, DigitalSignatureKms.class));
+        } catch (FeignException e) {
+            if (e.status() == HttpStatus.BAD_REQUEST.value()) {
+                throw new BadRequestException(e.getMessage(), e);
+            }
+            throw new InternalServerErrorException("Could not validate digital KMS signature", e);
+        }
         log.info("Digital KMS signature is valid");
 
         encrypt(digitalSignature);