diff --git a/backend/src/ee/services/audit-log/audit-log-types.ts b/backend/src/ee/services/audit-log/audit-log-types.ts
index 991198a1a..f865c0cbe 100644
--- a/backend/src/ee/services/audit-log/audit-log-types.ts
+++ b/backend/src/ee/services/audit-log/audit-log-types.ts
@@ -49,7 +49,7 @@ import { TWebhookPayloads } from "@app/services/webhook/webhook-types";
 import { WorkflowIntegration } from "@app/services/workflow-integration/workflow-integration-types";
 
 import { KmipPermission } from "../kmip/kmip-enum";
-import { AcmeIdentifierType } from "../pki-acme/pki-acme-schemas";
+import { AcmeChallengeType, AcmeIdentifierType } from "../pki-acme/pki-acme-schemas";
 import { ApprovalStatus } from "../secret-approval-request/secret-approval-request-types";
 
 export type TListProjectAuditLogDTO = {
@@ -583,7 +583,9 @@ export enum EventType {
   CREATE_ACME_ACCOUNT = "create-acme-account",
   RETRIEVE_ACME_ACCOUNT = "retrieve-acme-account",
   CREATE_ACME_ORDER = "create-acme-order",
-  FINALIZE_ACME_ORDER = "finalize-acme-order"
+  FINALIZE_ACME_ORDER = "finalize-acme-order",
+  DOWNLOAD_ACME_CERTIFICATE = "download-acme-certificate",
+  RESPOND_TO_ACME_CHALLENGE = "respond-to-acme-challenge"
 }
 
 export const filterableSecretEvents: EventType[] = [
@@ -4439,6 +4441,20 @@ interface FinalizeAcmeOrderEvent {
   };
 }
 
+interface DownloadAcmeCertificateEvent {
+  type: EventType.DOWNLOAD_ACME_CERTIFICATE;
+  metadata: {
+    orderId: string;
+  };
+}
+
+interface RespondToAcmeChallengeEvent {
+  type: EventType.RESPOND_TO_ACME_CHALLENGE;
+  metadata: {
+    challengeId: string;
+    type: AcmeChallengeType;
+  };
+}
 export type Event =
   | CreateSubOrganizationEvent
   | UpdateSubOrganizationEvent
@@ -4843,4 +4859,6 @@ export type Event =
   | CreateAcmeAccountEvent
   | RetrieveAcmeAccountEvent
   | CreateAcmeOrderEvent
-  | FinalizeAcmeOrderEvent;
+  | FinalizeAcmeOrderEvent
+  | DownloadAcmeCertificateEvent
+  | RespondToAcmeChallengeEvent;
diff --git a/backend/src/ee/services/pki-acme/pki-acme-service.ts b/backend/src/ee/services/pki-acme/pki-acme-service.ts
index b192ac46d..027823621 100644
--- a/backend/src/ee/services/pki-acme/pki-acme-service.ts
+++ b/backend/src/ee/services/pki-acme/pki-acme-service.ts
@@ -1005,6 +1005,24 @@ export const pkiAcmeServiceFactory = ({
 
     const certLeaf = certObj.toString("pem").trim().replace("\n", "\r\n");
     const certChain = certificateChain.trim().replace("\n", "\r\n");
+
+    await auditLogService.createAuditLog({
+      projectId: profile.projectId,
+      actor: {
+        type: ActorType.ACME_ACCOUNT,
+        metadata: {
+          profileId,
+          accountId
+        }
+      },
+      event: {
+        type: EventType.DOWNLOAD_ACME_CERTIFICATE,
+        metadata: {
+          orderId
+        }
+      }
+    });
+
     return {
       status: 200,
       body:
@@ -1087,6 +1105,7 @@ export const pkiAcmeServiceFactory = ({
     authzId: string;
     challengeId: string;
   }): Promise<TAcmeResponse<TRespondToAcmeChallengeResponse>> => {
+    const profile = await validateAcmeProfile(profileId);
     const result = await acmeChallengeDAL.findByAccountAuthAndChallengeId(accountId, authzId, challengeId);
     if (!result) {
       throw new NotFoundError({ message: "ACME challenge not found" });
@@ -1094,6 +1113,23 @@ export const pkiAcmeServiceFactory = ({
     await acmeChallengeService.markChallengeAsReady(challengeId);
     await pkiAcmeQueueService.queueChallengeValidation(challengeId);
     const challenge = (await acmeChallengeDAL.findByIdForChallengeValidation(challengeId))!;
+    await auditLogService.createAuditLog({
+      projectId: profile.projectId,
+      actor: {
+        type: ActorType.ACME_ACCOUNT,
+        metadata: {
+          profileId,
+          accountId
+        }
+      },
+      event: {
+        type: EventType.RESPOND_TO_ACME_CHALLENGE,
+        metadata: {
+          challengeId,
+          type: challenge.type
+        }
+      }
+    });
     return {
       status: 200,
       body: {