diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/proctoring/JitsiProctoringService.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/proctoring/JitsiProctoringService.java
index 293c039e..1f6c4e79 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/proctoring/JitsiProctoringService.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/proctoring/JitsiProctoringService.java
@@ -150,11 +150,17 @@ public class JitsiProctoringService implements ExamProctoringService {
                 final ResponseEntity<String> result =
                         restTemplate.getForEntity(proctoringSettings.serverURL, String.class);
                 if (result.getStatusCode() != HttpStatus.OK) {
-                    throw new APIMessageException(APIMessage.ErrorMessage.EXTERNAL_SERVICE_BINDING_ERROR);
+                    throw new APIMessageException(Arrays.asList(
+                            APIMessage.fieldValidationError(ProctoringServiceSettings.ATTR_SERVER_URL,
+                                    "proctoringSettings:serverURL:url.invalid"),
+                            APIMessage.ErrorMessage.EXTERNAL_SERVICE_BINDING_ERROR.of()));
                 }
             } catch (final Exception e) {
                 log.error("Failed to access proctoring service: {}", e.getMessage());
-                throw new APIMessageException(APIMessage.ErrorMessage.EXTERNAL_SERVICE_BINDING_ERROR, e.getMessage());
+                throw new APIMessageException(Arrays.asList(
+                        APIMessage.fieldValidationError(ProctoringServiceSettings.ATTR_SERVER_URL,
+                                "proctoringSettings:serverURL:url.invalid"),
+                        APIMessage.ErrorMessage.EXTERNAL_SERVICE_BINDING_ERROR.of(e)));
             }
 
             return true;
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/proctoring/ZoomProctoringService.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/proctoring/ZoomProctoringService.java
index 690f25d2..02afee6a 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/proctoring/ZoomProctoringService.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/proctoring/ZoomProctoringService.java
@@ -186,14 +186,17 @@ public class ZoomProctoringService implements ExamProctoringService {
                                 credentials);
 
                 if (result.getStatusCode() != HttpStatus.OK) {
-                    throw new APIMessageException(
-                            APIMessage.ErrorMessage.EXTERNAL_SERVICE_BINDING_ERROR,
-                            String.valueOf(result.getStatusCode()));
+                    throw new APIMessageException(Arrays.asList(
+                            APIMessage.fieldValidationError(ProctoringServiceSettings.ATTR_SERVER_URL,
+                                    "proctoringSettings:serverURL:url.invalid"),
+                            APIMessage.ErrorMessage.EXTERNAL_SERVICE_BINDING_ERROR.of()));
                 }
-
             } catch (final Exception e) {
                 log.error("Failed to access Zoom service at: {}", proctoringSettings.serverURL, e);
-                throw new APIMessageException(APIMessage.ErrorMessage.EXTERNAL_SERVICE_BINDING_ERROR, e.getMessage());
+                throw new APIMessageException(Arrays.asList(
+                        APIMessage.fieldValidationError(ProctoringServiceSettings.ATTR_SERVER_URL,
+                                "proctoringSettings:serverURL:url.invalid"),
+                        APIMessage.ErrorMessage.EXTERNAL_SERVICE_BINDING_ERROR.of()));
             }
 
             return true;
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAdministrationController.java b/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAdministrationController.java
index ec38c0f0..07985834 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAdministrationController.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAdministrationController.java
@@ -379,9 +379,11 @@ public class ExamAdministrationController extends EntityController<Exam, Exam> {
         return this.entityDAO.byPK(examId)
                 .flatMap(this.authorization::checkModify)
                 .map(exam -> {
-                    this.examAdminService.getExamProctoringService(proctoringServiceSettings.serverType)
-                            .flatMap(service -> service.testExamProctoring(proctoringServiceSettings))
-                            .getOrThrow();
+                    if (proctoringServiceSettings.enableProctoring) {
+                        this.examAdminService.getExamProctoringService(proctoringServiceSettings.serverType)
+                                .flatMap(service -> service.testExamProctoring(proctoringServiceSettings))
+                                .getOrThrow();
+                    }
                     this.examAdminService.saveProctoringServiceSettings(examId, proctoringServiceSettings);
                     return exam;
                 })