diff --git a/backend/packages/Upgrade/src/api/middlewares/ValidateMoocletPolicyParameters.ts b/backend/packages/Upgrade/src/api/middlewares/ValidateMoocletPolicyParameters.ts
index f73468e747..11d6717cc2 100644
--- a/backend/packages/Upgrade/src/api/middlewares/ValidateMoocletPolicyParameters.ts
+++ b/backend/packages/Upgrade/src/api/middlewares/ValidateMoocletPolicyParameters.ts
@@ -9,13 +9,13 @@ export class ValidateMoocletPolicyParametersMiddleware implements ExpressMiddlew
   public async use(req: Request, res: Response, next: NextFunction): Promise<void> {
     const experiment = req.body;
 
-    if (!env.mooclets.enabled && 'moocletPolicyParameters' in experiment) {
+    if (!env.mooclets?.enabled && 'moocletPolicyParameters' in experiment) {
       throw new UnprocessableEntityException(
         'Failed to create Experiment: moocletPolicyParameters was provided but mooclets are not enabled on backend.'
       );
     }
-
-    if (env.mooclets.enabled) {
+    
+    if (env.mooclets?.enabled) {
       try {
         const policyParameters = await validateMoocletPolicyParameters(
           experiment.assignmentAlgorithm,
@@ -27,6 +27,7 @@ export class ValidateMoocletPolicyParametersMiddleware implements ExpressMiddlew
       }
     }
 
+    // else, if mooclets is not enabled, keep calm and carry on
     next();
   }
 }
\ No newline at end of file
diff --git a/backend/packages/Upgrade/src/api/services/MoocletExperimentService.ts b/backend/packages/Upgrade/src/api/services/MoocletExperimentService.ts
index 9d905c325c..34602996a4 100644
--- a/backend/packages/Upgrade/src/api/services/MoocletExperimentService.ts
+++ b/backend/packages/Upgrade/src/api/services/MoocletExperimentService.ts
@@ -11,7 +11,6 @@ import {
   MoocletVersionRequestBody,
   MoocletVersionResponseDetails,
 } from '../../types/Mooclet';
-import { SUPPORTED_MOOCLET_POLICY_NAMES } from 'upgrade_types';
 import { ExperimentService } from './ExperimentService';
 import { ExperimentRepository } from '../repositories/ExperimentRepository';
 import { ExperimentConditionRepository } from '../repositories/ExperimentConditionRepository';
@@ -50,6 +49,7 @@ import { ConditionValidator } from '../DTO/ExperimentDTO';
 import { UserDTO } from '../DTO/UserDTO';
 import { Experiment } from '../models/Experiment';
 import { UpgradeLogger } from '../../lib/logger/UpgradeLogger';
+import { ASSIGNMENT_ALGORITHM } from 'types/src';
 
 export interface SyncCreateParams {
   experimentDTO: MoocletExperimentDTO;
@@ -309,6 +309,7 @@ export class MoocletExperimentService extends ExperimentService {
       });
       moocletExperimentRef.variableId = moocletVariableResponse?.id;
     } catch (err) {
+      console.log('>>>>>>>>>>>>>>> mooclet creation error, roll back', err)
       await this.handleMoocletCreationError(err, moocletExperimentRef, logger);
     }
 
@@ -497,7 +498,7 @@ export class MoocletExperimentService extends ExperimentService {
     assignmentAlgorithm: string,
     moocletResponse: MoocletResponseDetails
   ): Promise<MoocletVariableResponseDetails> {
-    if (!moocletPolicyParametersResponse || assignmentAlgorithm !== SUPPORTED_MOOCLET_POLICY_NAMES.TS_CONFIGURABLE) {
+    if (!moocletPolicyParametersResponse || assignmentAlgorithm !== ASSIGNMENT_ALGORITHM.MOOCLET_TS_CONFIGURABLE) {
       return null;
     }
 
diff --git a/backend/packages/Upgrade/src/types/Mooclet.ts b/backend/packages/Upgrade/src/types/Mooclet.ts
index 85c0e31d53..bfd7bc6eb5 100644
--- a/backend/packages/Upgrade/src/types/Mooclet.ts
+++ b/backend/packages/Upgrade/src/types/Mooclet.ts
@@ -115,12 +115,6 @@ export interface MoocletPolicyResponseDetails {
     environment?: string;
 }
 
-export interface MoocletDetails {
-    readonly mooclet?: MoocletResponseDetails;
-    readonly versions?: MoocletVersionResponseDetails[];
-    policyParameters: MoocletPolicyParameters;
-}
-
 export interface MoocletBatchResponse<T> {
     count: number;
     next: string;
diff --git a/types/src/Mooclet/DTO.ts b/types/src/Mooclet/index.ts
similarity index 100%
rename from types/src/Mooclet/DTO.ts
rename to types/src/Mooclet/index.ts
diff --git a/types/src/index.ts b/types/src/index.ts
index 70c803a628..f294d03fd7 100644
--- a/types/src/index.ts
+++ b/types/src/index.ts
@@ -77,6 +77,6 @@ export {
   FeatureFlagDeletedData,
 } from './Experiment/interfaces';
 export {
-  // MoocletTSConfigurablePolicyParametersDTO,
+  MoocletTSConfigurablePolicyParametersDTO,
   MOOCLET_POLICY_SCHEMA_MAP,
-} from './Mooclet/DTO';
\ No newline at end of file
+} from './Mooclet';
\ No newline at end of file