diff --git a/waltz-web/src/main/java/org/finos/waltz/web/endpoints/api/AssessmentRatingEndpoint.java b/waltz-web/src/main/java/org/finos/waltz/web/endpoints/api/AssessmentRatingEndpoint.java
index e7d99dae12..0672e642f1 100644
--- a/waltz-web/src/main/java/org/finos/waltz/web/endpoints/api/AssessmentRatingEndpoint.java
+++ b/waltz-web/src/main/java/org/finos/waltz/web/endpoints/api/AssessmentRatingEndpoint.java
@@ -281,7 +281,6 @@ private void verifyCanWrite(Request request, long defId) {
     private void registerPreviewBulkAssessmentRatingChanges(String path) {
         postForDatum(path, (req, resp) -> {
             EntityReference assessmentDefRef = mkRef(EntityKind.ASSESSMENT_DEFINITION, getId(req));
-            String modeStr = req.queryParams("mode");
             String body = req.body();
             return bulkAssessmentRatingService.bulkPreview(assessmentDefRef, body);
         });
@@ -290,10 +289,6 @@ private void registerPreviewBulkAssessmentRatingChanges(String path) {
     private void registerApplyBulkAssessmentRatingChanges(String path) {
         postForDatum(path, (req, resp) -> {
             EntityReference assessmentDefRef = mkRef(EntityKind.ASSESSMENT_DEFINITION, getId(req));
-            String modeStr = req.queryParams("mode");
-            String formatStr = req.queryParams("format");
-            BulkUpdateMode mode = EnumUtilities.readEnum(modeStr, BulkUpdateMode.class, s -> BulkUpdateMode.ADD_ONLY);
-            BulkAssessmentRatingItemParser.InputFormat format = EnumUtilities.readEnum(formatStr, BulkAssessmentRatingItemParser.InputFormat.class, s -> BulkAssessmentRatingItemParser.InputFormat.TSV);
             String body = req.body();
             AssessmentRatingValidationResult preview = bulkAssessmentRatingService.bulkPreview(assessmentDefRef, body);
             return bulkAssessmentRatingService.apply(assessmentDefRef, preview, getUsername(req));