diff --git a/tdrive/backend/node/src/services/console/clients/remote-jwks-verifier.ts b/tdrive/backend/node/src/services/console/clients/remote-jwks-verifier.ts
index 9ce0e052..36d079d1 100644
--- a/tdrive/backend/node/src/services/console/clients/remote-jwks-verifier.ts
+++ b/tdrive/backend/node/src/services/console/clients/remote-jwks-verifier.ts
@@ -100,9 +100,7 @@ export class OidcJwtVerifier {
 
   async verifyLogoutToken(logoutTokenString: string) {
     const jwt = await this.verifyAsPromise(logoutTokenString);
-    // verifyAudience(expectedClientId, jwt.claims.aud);
-    // verifyIssuer(this.issuer, jwt.claims.iss);
-
+    logger.info(`issuer is ${this.issuer} -- ${jwt.claims.iss} -- ${JSON.stringify(jwt)}`);
     return jwt;
   }
 }
diff --git a/tdrive/backend/node/src/services/console/clients/remote.ts b/tdrive/backend/node/src/services/console/clients/remote.ts
index 1ffc9105..e6d99578 100644
--- a/tdrive/backend/node/src/services/console/clients/remote.ts
+++ b/tdrive/backend/node/src/services/console/clients/remote.ts
@@ -281,16 +281,36 @@ export class ConsoleRemoteClient implements ConsoleServiceClient {
   async backChannelLogout(logoutToken: string): Promise<void> {
     const payload = await this.verifier.verifyLogoutToken(logoutToken);
 
-    if (!payload.iss || !payload.aud || !payload.iat || !payload.jti || !payload.events) {
-      throw new CrudException("Missing required claims", 400);
+    if (!payload.iss) {
+      throw new CrudException("Missing required 'iss' claim", 400);
+    }
+
+    if (!payload.aud) {
+      throw new CrudException("Missing required 'aud' claim", 400);
+    }
+
+    if (!payload.iat) {
+      throw new CrudException("Missing required 'iat' claim", 400);
+    }
+
+    if (!payload.jti) {
+      throw new CrudException("Missing required 'jti' claim", 400);
+    }
+
+    if (!payload.events) {
+      throw new CrudException("Missing required 'events' claim", 400);
     }
 
     if (payload.nonce) {
       throw new CrudException("Nonce claim is prohibited", 400);
     }
 
-    if (!payload.sub && !payload.sid) {
-      throw new CrudException("Missing sub or sid claim", 400);
+    if (!payload.sub) {
+      throw new CrudException("Missing 'sub' claim", 400);
+    }
+
+    if (!payload.sid) {
+      throw new CrudException("Missing 'sid' claim", 400);
     }
 
     const sessionRepository = gr.services.console.getSessionRepo();
diff --git a/tdrive/backend/node/test/unit/services/console/clients/remote.test.ts b/tdrive/backend/node/test/unit/services/console/clients/remote.test.ts
new file mode 100644
index 00000000..af2a7cd2
--- /dev/null
+++ b/tdrive/backend/node/test/unit/services/console/clients/remote.test.ts
@@ -0,0 +1,107 @@
+import { describe, expect, it } from "@jest/globals";
+// @ts-ignore
+import _ from "lodash";
+import { ConsoleRemoteClient } from "../../../../../src/services/console/clients/remote";
+import { OidcJwtVerifier } from "../../../../../src/services/console/clients/remote-jwks-verifier";
+import { ConsoleServiceImpl } from "../../../../../src/services/console/service";
+
+describe("Test back-channel logout", () => {
+
+  const subj = new ConsoleRemoteClient(new ConsoleServiceImpl({
+    audience: "",
+    authority: "",
+    client_id: "",
+    client_secret: "",
+    disable_account_creation: false,
+    jwks_uri: "",
+    redirect_uris: [],
+    type: undefined,
+    issuer: "" }));
+  const verifyTokenMock = jest.spyOn(OidcJwtVerifier.prototype, "verifyLogoutToken");
+
+  const validToken = {
+    "sid": "Ev81/QODom0HXu9MGjCwnn1tDTpji+j0jopjRAE0ypo",
+    "aud": [
+      "twakedrive"
+    ],
+    "sub": "shepilov3@stg.lin-saas.com",
+    "iat": 1716986356,
+    "jti": "F9R6DYPE",
+    "events": {
+      "http://schemas.openid.net/event/backchannel-logout": {}
+    },
+    "iss": "https://sign-up.stg.lin-saas.com/"
+  };
+
+  const mockTokenWithoutProperty = (prop: string) => {
+    const token = _.cloneDeep(validToken);
+    token[prop] = null
+    verifyTokenMock.mockImplementation(() => {
+      return Promise.resolve(token); // Return the predefined payload
+    });
+  }
+
+  it("backChannelLogout should throw error if 'iss' claim is missing", () => {
+    //given
+    mockTokenWithoutProperty("iss")
+    //when
+    let logout = subj.backChannelLogout('');
+    //then
+    expect(logout).rejects.toThrow("Missing required 'iss' claim");
+
+  });
+
+  it("backChannelLogout should throw error if 'aud' claim is missing", () => {
+    //given
+    mockTokenWithoutProperty("aud")
+    //when
+    let logout = subj.backChannelLogout('');
+    //then
+    expect(logout).rejects.toThrow("Missing required 'aud' claim");
+  });
+
+  it("backChannelLogout should throw error if 'jti' claim is missing", () => {
+    //given
+    mockTokenWithoutProperty("jti")
+    //when
+    let logout = subj.backChannelLogout('');
+    //then
+    expect(logout).rejects.toThrow("Missing required 'jti' claim");
+  });
+
+  it("backChannelLogout should throw error if 'iat' claim is missing", () => {
+    //given
+    mockTokenWithoutProperty("iat")
+    //when
+    let logout = subj.backChannelLogout('');
+    //then
+    expect(logout).rejects.toThrow("Missing required 'iat' claim");
+  });
+
+  it("backChannelLogout should throw error if 'events' claim is missing", () => {
+    //given
+    mockTokenWithoutProperty("events")
+    //when
+    let logout = subj.backChannelLogout('');
+    //then
+    expect(logout).rejects.toThrowError("Missing required 'events' claim");
+  });
+
+  it("backChannelLogout should throw error if 'sub' claim is missing", () => {
+    //given
+    mockTokenWithoutProperty("sub")
+    //when
+    let logout = subj.backChannelLogout('');
+    //then
+    expect(logout).rejects.toThrowError("Missing 'sub' claim");
+  });
+
+  it("backChannelLogout should throw error if 'sid' claim is missing", () => {
+    //given
+    mockTokenWithoutProperty("sid")
+    //when
+    let logout = subj.backChannelLogout('');
+    //then
+    expect(logout).rejects.toThrowError("Missing 'sid' claim");
+  });
+})
\ No newline at end of file