diff --git a/src/SASjs.ts b/src/SASjs.ts
index f554947..01c00b5 100644
--- a/src/SASjs.ts
+++ b/src/SASjs.ts
@@ -592,15 +592,6 @@ export default class SASjs {
           'A username and password are required when using the default login mechanism.'
         )
 
-      if (this.sasjsConfig.serverType === ServerType.Sasjs) {
-        if (!clientId)
-          throw new Error(
-            'A username, password and clientId are required when using the default login mechanism with server type SASJS.'
-          )
-
-        return this.authManager!.logInSasjs(username, password, clientId)
-      }
-
       return this.authManager!.logIn(username, password)
     }
 
diff --git a/src/SASjsApiClient.ts b/src/SASjsApiClient.ts
index af17911..e0d8955 100644
--- a/src/SASjsApiClient.ts
+++ b/src/SASjsApiClient.ts
@@ -3,7 +3,6 @@ import { ExecutionQuery } from './types'
 import { RequestClient } from './request/RequestClient'
 import { getAccessTokenForSasjs } from './auth/getAccessTokenForSasjs'
 import { refreshTokensForSasjs } from './auth/refreshTokensForSasjs'
-import { getAuthCodeForSasjs } from './auth/getAuthCodeForSasjs'
 import { parseWeboutResponse } from './utils'
 import { getTokens } from './auth/getTokens'
 
@@ -114,20 +113,6 @@ export class SASjsApiClient {
   public async refreshTokens(refreshToken: string): Promise<SASjsAuthResponse> {
     return refreshTokensForSasjs(this.requestClient, refreshToken)
   }
-
-  /**
-   * Performs a login authenticate and returns an auth code for the given client.
-   * @param username - a string representing the username.
-   * @param password - a string representing the password.
-   * @param clientId - the client ID to authenticate with.
-   */
-  public async getAuthCode(
-    username: string,
-    password: string,
-    clientId: string
-  ) {
-    return getAuthCodeForSasjs(this.requestClient, username, password, clientId)
-  }
 }
 
 // todo move to sasjs/utils
diff --git a/src/auth/AuthManager.ts b/src/auth/AuthManager.ts
index 5d69c94..b541c26 100644
--- a/src/auth/AuthManager.ts
+++ b/src/auth/AuthManager.ts
@@ -2,8 +2,6 @@ import { ServerType } from '@sasjs/utils/types'
 import { RequestClient } from '../request/RequestClient'
 import { LoginOptions, LoginResult } from '../types/Login'
 import { serialize } from '../utils'
-import { getAccessTokenForSasjs } from './getAccessTokenForSasjs'
-import { getAuthCodeForSasjs } from './getAuthCodeForSasjs'
 import { openWebPage } from './openWebPage'
 import { verifySas9Login } from './verifySas9Login'
 import { verifySasViyaLogin } from './verifySasViyaLogin'
@@ -83,39 +81,6 @@ export class AuthManager {
     return { isLoggedIn: false, userName: '' }
   }
 
-  /**
-   * Logs into the SAS server with the supplied credentials.
-   * @param userName - a string representing the username.
-   * @param password - a string representing the password.
-   * @param clientId - a string representing the client ID.
-   * @returns - a boolean `isLoggedin` and a string `username`
-   */
-  public async logInSasjs(
-    username: string,
-    password: string,
-    clientId: string
-  ): Promise<LoginResult> {
-    const isLoggedIn = await this.sendLoginRequestSasjs(
-      username,
-      password,
-      clientId
-    )
-      .then((res) => {
-        this.userName = username
-        this.requestClient.saveLocalStorageToken(
-          res.access_token,
-          res.refresh_token
-        )
-        return true
-      })
-      .catch(() => false)
-
-    return {
-      isLoggedIn,
-      userName: this.userName
-    }
-  }
-
   /**
    * Logs into the SAS server with the supplied credentials.
    * @param username - a string representing the username.
@@ -152,7 +117,7 @@ export class AuthManager {
 
     let loginResponse = await this.sendLoginRequest(loginForm, loginParams)
 
-    let isLoggedIn = isLogInSuccess(loginResponse)
+    let isLoggedIn = isLogInSuccess(this.serverType, loginResponse)
 
     if (!isLoggedIn) {
       if (isCredentialsVerifyError(loginResponse)) {
@@ -196,6 +161,17 @@ export class AuthManager {
     loginForm: { [key: string]: any },
     loginParams: { [key: string]: any }
   ) {
+    if (this.serverType === ServerType.Sasjs) {
+      const { username, password } = loginParams
+      const { result: loginResponse } = await this.requestClient.post<string>(
+        this.loginUrl,
+        { username, password },
+        undefined
+      )
+
+      return loginResponse
+    }
+
     for (const key in loginForm) {
       loginParams[key] = loginForm[key]
     }
@@ -215,19 +191,6 @@ export class AuthManager {
     return loginResponse
   }
 
-  private async sendLoginRequestSasjs(
-    username: string,
-    password: string,
-    clientId: string
-  ) {
-    const authCode = await getAuthCodeForSasjs(
-      this.requestClient,
-      username,
-      password,
-      clientId
-    )
-    return getAccessTokenForSasjs(this.requestClient, clientId, authCode)
-  }
   /**
    * Checks whether a session is active, or login is required.
    * @returns - a promise which resolves with an object containing three values
@@ -248,8 +211,7 @@ export class AuthManager {
       //Residue can happen in case of session expiration
       await this.logOut()
 
-      if (this.serverType !== ServerType.Sasjs)
-        loginForm = await this.getNewLoginForm()
+      loginForm = await this.getNewLoginForm()
     }
 
     return Promise.resolve({
@@ -260,6 +222,12 @@ export class AuthManager {
   }
 
   private async getNewLoginForm() {
+    if (this.serverType === ServerType.Sasjs) {
+      // server will be sending CSRF cookie,
+      // http client will use it automatically
+      return this.requestClient.get('/', undefined)
+    }
+
     const { result: formResponse } = await this.requestClient.get<string>(
       this.loginUrl.replace('.do', ''),
       undefined,
@@ -384,5 +352,8 @@ const isCredentialsVerifyError = (response: string): boolean =>
     response
   )
 
-const isLogInSuccess = (response: string): boolean =>
-  /You have signed in/gm.test(response)
+const isLogInSuccess = (serverType: ServerType, response: any): boolean => {
+  if (serverType === ServerType.Sasjs) return response?.loggedin
+
+  return /You have signed in/gm.test(response)
+}
diff --git a/src/auth/getAuthCodeForSasjs.ts b/src/auth/getAuthCodeForSasjs.ts
deleted file mode 100644
index aa6d2b2..0000000
--- a/src/auth/getAuthCodeForSasjs.ts
+++ /dev/null
@@ -1,31 +0,0 @@
-import { prefixMessage } from '@sasjs/utils/error'
-import { RequestClient } from '../request/RequestClient'
-
-/**
- * Performs a login authenticate and returns an auth code for the given client.
- * @param requestClient - the pre-configured HTTP request client
- * @param username - a string representing the username.
- * @param password - a string representing the password.
- * @param clientId - the client ID to authenticate with.
- */
-export const getAuthCodeForSasjs = async (
-  requestClient: RequestClient,
-  username: string,
-  password: string,
-  clientId: string
-) => {
-  const url = '/SASjsApi/auth/authorize'
-  const data = { username, password, clientId }
-
-  const { code: authCode } = await requestClient
-    .post<{ code: string }>(url, data, undefined)
-    .then((res) => res.result)
-    .catch((err) => {
-      throw prefixMessage(
-        err,
-        'Error while authenticating with provided username, password and clientId. '
-      )
-    })
-
-  return authCode
-}
diff --git a/src/utils/convertToCsv.ts b/src/utils/convertToCsv.ts
index 2211cd8..62cf613 100644
--- a/src/utils/convertToCsv.ts
+++ b/src/utils/convertToCsv.ts
@@ -1,4 +1,4 @@
-import { isSpecialMissing } from '@sasjs/utils'
+import { isSpecialMissing } from '@sasjs/utils/input/validators'
 
 /**
  * Converts the given JSON object array to a CSV string.