diff --git a/src/SASViyaApiClient.spec.ts b/src/SASViyaApiClient.spec.ts
index 516c5bb..13c5199 100644
--- a/src/SASViyaApiClient.spec.ts
+++ b/src/SASViyaApiClient.spec.ts
@@ -29,11 +29,33 @@ describe('SASViyaApiClient', () => {
     jest
       .spyOn(requestClient, 'get')
       .mockImplementation(() => Promise.reject('Not Found'))
+
     const error = await sasViyaApiClient
       .createFolder('test', '/foo')
       .catch((e: any) => e)
+
     expect(error).toBeInstanceOf(RootFolderNotFoundError)
   })
+
+  it('should throw an error when ', async () => {
+    const testMessage1 = 'test message 1'
+    const testMessage2 = 'test message 2.'
+
+    jest.spyOn(requestClient, 'post').mockImplementation(() => {
+      return Promise.reject({
+        message: testMessage1,
+        response: { data: { message: testMessage2 }, status: 409 }
+      })
+    })
+
+    const error = await sasViyaApiClient
+      .createFolder('test', '/foo')
+      .catch((e: any) => e)
+
+    const expectedError = `${testMessage1}. ${testMessage2} To override, please set "isForced" to "true".`
+
+    expect(error).toEqual(expectedError)
+  })
 })
 
 const setupMocks = () => {
diff --git a/src/SASViyaApiClient.ts b/src/SASViyaApiClient.ts
index ea5cdb0..306223b 100644
--- a/src/SASViyaApiClient.ts
+++ b/src/SASViyaApiClient.ts
@@ -378,12 +378,14 @@ export class SASViyaApiClient {
     isForced?: boolean
   ): Promise<Folder> {
     const logger = process.logger || console
+
     if (!parentFolderPath && !parentFolderUri) {
       throw new Error('Path or URI of the parent folder is required.')
     }
 
     if (!parentFolderUri && parentFolderPath) {
       parentFolderUri = await this.getFolderUri(parentFolderPath, accessToken)
+
       if (!parentFolderUri) {
         logger.info(
           `Parent folder at path '${parentFolderPath}' is not present.`
@@ -394,6 +396,7 @@ export class SASViyaApiClient {
           parentFolderPath.lastIndexOf('/')
         )
         const newFolderName = `${parentFolderPath.split('/').pop()}`
+
         if (newParentFolderPath === '') {
           throw new RootFolderNotFoundError(
             parentFolderPath,
@@ -401,20 +404,24 @@ export class SASViyaApiClient {
             accessToken
           )
         }
+
         logger.info(
           `Creating parent folder:\n'${newFolderName}' in '${newParentFolderPath}'`
         )
+
         const parentFolder = await this.createFolder(
           newFolderName,
           newParentFolderPath,
           undefined,
           accessToken
         )
+
         logger.info(
           `Parent folder '${newFolderName}' has been successfully created.`
         )
+
         parentFolderUri = `/folders/folders/${parentFolder.id}`
-      } else if (isForced && accessToken) {
+      } else if (isForced) {
         const folderPath = parentFolderPath + '/' + folderName
         const folderUri = await this.getFolderUri(folderPath, accessToken)
 
@@ -427,8 +434,8 @@ export class SASViyaApiClient {
       }
     }
 
-    const { result: createFolderResponse } =
-      await this.requestClient.post<Folder>(
+    const { result: createFolderResponse } = await this.requestClient
+      .post<Folder>(
         `/folders/folders?parentFolderUri=${parentFolderUri}`,
         {
           name: folderName,
@@ -436,12 +443,34 @@ export class SASViyaApiClient {
         },
         accessToken
       )
+      .catch((err) => {
+        const { message, response } = err
+
+        if (message && response && response.data && response.data.message) {
+          const { status } = response
+          const { message: responseMessage } = response.data
+          const messages = [message, responseMessage].map((mes: string) =>
+            /\.$/.test(mes) ? mes : `${mes}.`
+          )
+
+          if (!isForced && status === 409) {
+            messages.push(`To override, please set "isForced" to "true".`)
+          }
+
+          const errMessage = messages.join(' ')
+
+          throw errMessage
+        }
+
+        throw err
+      })
 
     // update folder map with newly created folder.
     await this.populateFolderMap(
       `${parentFolderPath}/${folderName}`,
       accessToken
     )
+
     return createFolderResponse
   }
 
@@ -900,7 +929,7 @@ export class SASViyaApiClient {
     return `/folders/folders/${folderDetails.id}`
   }
 
-  private async getRecycleBinUri(accessToken: string) {
+  private async getRecycleBinUri(accessToken?: string) {
     const url = '/folders/folders/@myRecycleBin'
 
     const { result: folder } = await this.requestClient
@@ -984,7 +1013,7 @@ export class SASViyaApiClient {
     sourceFolder: string,
     targetParentFolder: string,
     targetFolderName: string,
-    accessToken: string
+    accessToken?: string
   ) {
     // If target path is an existing folder, than keep source folder name, othervise rename it with given target folder name
     const sourceFolderName = sourceFolder.split('/').pop() as string
@@ -1051,7 +1080,7 @@ export class SASViyaApiClient {
    * @param folderPath - the full path (eg `/Public/example/deleteThis`) of the folder to be deleted.
    * @param accessToken - an access token for authorizing the request.
    */
-  public async deleteFolder(folderPath: string, accessToken: string) {
+  public async deleteFolder(folderPath: string, accessToken?: string) {
     const recycleBinUri = await this.getRecycleBinUri(accessToken)
     const folderName = folderPath.split('/').pop() || ''
     const date = new Date()
diff --git a/src/SASjs.ts b/src/SASjs.ts
index 87b0295..5de5b31 100644
--- a/src/SASjs.ts
+++ b/src/SASjs.ts
@@ -337,13 +337,16 @@ export default class SASjs {
     sasApiClient?: SASViyaApiClient,
     isForced?: boolean
   ) {
-    if (sasApiClient)
+    if (sasApiClient) {
       return await sasApiClient.createFolder(
         folderName,
         parentFolderPath,
         parentFolderUri,
-        accessToken
+        accessToken,
+        isForced
       )
+    }
+
     return await this.sasViyaApiClient!.createFolder(
       folderName,
       parentFolderPath,
@@ -783,13 +786,11 @@ export default class SASjs {
     this.isMethodSupported('deployServicePack', [ServerType.SasViya])
 
     let sasApiClient: any = null
+
     if (serverUrl || appLoc) {
-      if (!serverUrl) {
-        serverUrl = this.sasjsConfig.serverUrl
-      }
-      if (!appLoc) {
-        appLoc = this.sasjsConfig.appLoc
-      }
+      if (!serverUrl) serverUrl = this.sasjsConfig.serverUrl
+      if (!appLoc) appLoc = this.sasjsConfig.appLoc
+
       if (this.sasjsConfig.serverType === ServerType.SasViya) {
         sasApiClient = new SASViyaApiClient(
           serverUrl,
@@ -807,11 +808,13 @@ export default class SASjs {
       }
     } else {
       let sasClientConfig: any = null
+
       if (this.sasjsConfig.serverType === ServerType.SasViya) {
         sasClientConfig = this.sasViyaApiClient!.getConfig()
       } else if (this.sasjsConfig.serverType === ServerType.Sas9) {
         sasClientConfig = this.sas9ApiClient!.getConfig()
       }
+
       serverUrl = sasClientConfig.serverUrl
       appLoc = sasClientConfig.rootFolderName as string
     }