Box for Developers

発生日: 2026-09-06■ 症状Box Drive の「ログイン」→ ブラウザで認証 → Box Drive のログイン画面に戻る、を繰り返す。Box Drive のログには毎回 pkce_verification_failed が記録される。POST https://api.box.com/oauth2/token→ {"error":"pkce_verification_failed","error_description":"PKCE verification has failed"}■ 追跡した認証フロー（ブラウザ履歴より）1. account.box.com/api/oauth2/authorizestate=<uuid>code_challenge=<43文字>code_challenge_method=S256client_id=86xa1h4ghg1wmworl48by1pysmv076ufredirect_uri=boxdrive://oauth2_redirect→ PKCE パラメータは正しく付与されている2. account.box.com/integrations/googleplus/ensureValidBrowser→ /integrations/googleplus/beginAuthorization→ accounts.google.com/o/oauth2/v2/auth （Googleアカウント連携で認証）3. account.box.com/integrations/googleplus/oauth2Redirectauthuser=0, hd=toggle.co.jp, prompt=none （ドメインは正しい）4. app.box.com/api/oauth2/authorize→ ★クエリパラメータが空。code_challenge が失われている5. boxdrive://oauth2_redirect?state=<uuid>&code=<code>→ state は保持されて戻る（＝認証自体は成功している）6. トークン交換で PKCE 検証に失敗■ 切り分け済み（すべて同一エラーで再現）・別のPCでも再現 → クライアント環境依存ではない・Box

Does anyone know where to get actual guidance/help in accessing Box with the .net sdk.  It looks like all of the developers seeking for assistance on this site never gets resolved. Thanks in advance.

I am a systems integrator building an OAuth 2.0 application used to migrate customer-owned content from Box to another DAM. The OAuth application is owned by my free Box Developer account, while each customer authorizes the application using their own Box user account. The migration contains approximately 200,000 files and will generate several hundred thousand API requests. Which account's Platform API allocation applies to these requests? Does the developer account that owns the OAuth application require a paid Platform/Business subscription for production use? The customer’s source account is Individual.

I can’t change redirect urls, all action fail, can’t add, can’t remove, can’t edit ​​​Box Developers Consolewith browser request Box cfg RequestResponse Body 

Can anyone please help with accessing box from vb.net.  I am having a heck of a time figuring it out after researching for days. Thanks

I am trying to test the Box API endpoint /2.0/notes/convert in Postman, which is used to convert Markdown content into a native .boxnote file in a target Box folder.However, I am not receiving the expected output when making the API request. I would like assistance in understanding the correct request format, required parameters, headers, and any specific requirements for successfully creating a .boxnote file from Markdown content.API Endpoint:https://api.box.com/2.0/notes/convertEnvironment: PostmanExpected Result:The Markdown content should be converted into a native Box Note (.boxnote) and created in the specified target folder.Actual Result:The API request giving the below error (Screenshot attached)Please provide guidance on the correct API request and any required configuration or permissions needed for this operation.Are this APIs only available for higher tier subscriptions? If yes the description in the “Plan comparison” is misleading because it does not state which APIs are a

I am trying to test the Box API endpoint /2.0/notes/convert in Postman, which is used to convert Markdown content into a native .boxnote file in a target Box folder.However, I am not receiving the expected output when making the API request. I would like assistance in understanding the correct request format, required parameters, headers, and any specific requirements for successfully creating a .boxnote file from Markdown content.API Endpoint:https://api.box.com/2.0/notes/convertEnvironment: PostmanExpected Result:The Markdown content should be converted into a native Box Note (.boxnote) and created in the specified target folder.Actual Result:The API request giving the below error (Screenshot attached)Please provide guidance on the correct API request and any required configuration or permissions needed for this operation.Are this APIs only available for higher tier subscriptions? If yes the description in the “Plan comparison” is misleading because it does not state which APIs are a

We are currently working on a project where we use the Box C# SDK (v5.x) to upload large files (100MB+) to our Box Enterprise account using the Chunked Upload API (CreateUploadSessionAsync). While standard single-part uploads work flawlessly for smaller files, large chunked uploads fail consistently.After creating the upload session and splitting the file into chunks, calls to UploadFilePartAsync return a 400 Bad Request (Digest Mismatch) response.anyone help?

Persistent operationInProgressError on folder hierarchyI own a Box folder that has been unable to be moved or deleted for several months, though I can rename it. It contains four empty subfolders, which I can also rename, but not move or delete. I cannot move a newly-created folder into the affected folder. I reproduced the problem in Chrome Incognito.The failed delete request returns:HTTP 409errorCode: operationInProgressErrordata: "A conflicting operation is being performed on one or more of the selected items."It seems that there is a persistent/stale operation or lock affecting this folder hierarchy. How can I ask for Box to clear it?

Whenever I try to save app configuration in the app portal I get this error. Regardless of what I am changing.{"error":{"code":"Unexpected error"}}Any ideas?  

Ich nutze ein Box-Individual-Konto, das mit ChatGPT verbunden ist.Die Integration kann erfolgreich:Ordner in Box anlegen Text-, Markdown- und CSV-Dateien hochladen Dateien aus Box lesenDie Berechtigungen des Box-Kontos zeigen canUpload: true.Der Upload von Binärdateien, z. B. PDF, schlägt jedoch beim eigentlichen Binär-Upload fehl. Eine Test-PDF war nur ca. 82 KB groß, die Dateigröße ist also nicht das Problem.Der gewünschte Ablauf ist:PDF scannen → in ChatGPT bearbeiten → die fertige PDF direkt wieder in Box speichernMeine Fragen:Wird der Upload von PDF-/Binärdateien über die ChatGPT-Box-Integration grundsätzlich unterstützt? Funktioniert das auch mit einem Box-Individual-Konto? Muss dafür eine zusätzliche Berechtigung oder Einstellung in Box aktiviert werden? Gibt es aktuell ein bekanntes Problem mit dem Binär-Upload bzw. dem Upload-Endpunkt?Normale Uploads direkt in Box funktionieren. Das Problem scheint nur den Upload über die ChatGPT-Integration zu betreffen.

Box API利用時に発生したエラーについて、ご存じの方がいらっしゃいましたらご教示いただけますでしょうか？2026年8月17日 10:44頃（JST）、Talend JobからBox APIを利用してファイルアップロード処理を実行した際、以下のエラーが発生し、処理が失敗しました。■ エラー内容com.box.boxjavalibv2.exceptions.BoxServerException:upstream connect error or disconnect/reset before headers.reset reason: overflowスタックトレース上では、Box Java Libraryの以下の処理でエラーが発生しています。com.box.boxjavalibv2.resourcemanagers.BoxItemsManagerImpl.getItemcom.box.boxjavalibv2.resourcemanagers.BoxFoldersManageImpl.getFolder■ 発生状況本番環境で上記エラーが発生した後、QA環境でも同様の処理を複数回実行しましたが、同様のエラーが発生しました。その後、同日午後に再度実行したところ、正常に処理が完了しました。そのため、特定のJobや環境に依存したものではなく、一時的な事象であった可能性もあると考えています。以下について、ご存じの方がいらっしゃいましたらご教示いただけますでしょうか。1. 「upstream connect error or disconnect/reset before headers. reset reason: overflow」というエラーは、どのような場合に発生するものでしょうか。2. 2026年8月17日午前（JST）頃に、Box APIまたは関連サービスにおいて一時的な接続異常等が発生していた可能性はありますでしょうか。3. 同様の事象が発生した場合、リトライ等の対応が推奨されますでしょうか。よろしくお願いいたします。

Hi Box team,I've built a server-side integration that pulls report files from Box folders into an internal TPM dashboard. The app is created and configured, but every token request is refused because the app has not been authorized for our enterprise. I can't clear this myself — it needs a co-admin action in the Admin Console.What I'm asking for1. Authorize this Custom App by Client ID in Admin Console → Apps → Custom Apps Manager → Add App:   - Client ID: 3hmb65ju4kleaytjogzilts6d6azr6tt   - App type: Custom App, Server Authentication (Client Credentials Grant)   - Access level: App Access Only (service account)   - Scopes needed: read-only — read files and folders. Please do not grant write scope.2. Confirm the Enterprise ID I'm using is correct: 1035202.3. Confirm our policy on shared links (see question below).

Hi Box Support —On Platform App Nautix Website (Client ID niov6aolqdxy9zvlsa61iorwvt, Enterprise [removed by moderator] ), clicking Fetch Client Secret redirects to a 404 (“Oops! We can't seem to find the page”). I cannot retrieve the client secret for Client Credentials Grant. Developer Token still works. Please reset/regenerate the client secret or fix Fetch Secret for this app.

As the developer of voidtools - Everything, I would like to know why the process Everything.exe is blocked from indexing the box folder. If I rename my process, indexing works fine.

I am trying to test the Box API endpoint /2.0/notes/convert in Postman, which is used to convert Markdown content into a native .boxnote file in a target Box folder.However, I am not receiving the expected output when making the API request. I would like assistance in understanding the correct request format, required parameters, headers, and any specific requirements for successfully creating a .boxnote file from Markdown content.API Endpoint:https://api.box.com/2.0/notes/convertEnvironment: PostmanExpected Result:The Markdown content should be converted into a native Box Note (.boxnote) and created in the specified target folder.Actual Result:The API request giving the below error (Screenshot attached)Please provide guidance on the correct API request and any required configuration or permissions needed for this operation.Are this APIs only available for higher tier subscriptions? If yes the description in the “Plan comparison” is misleading because it does not state which APIs are a

Hello, I created an App to help generate an API Key for use in some automation I need to complete. It has been in “Pending Enablement” for a while and I want to ask for support to get this approved. Can someone please help with getting this approved?

Is there an integration with Hazel/Altruist in the works?

when I try to click "fetch secret" button within an app, it shows an info message: "this action requires 2-step verification. please wait while you are redirected."    And after that an empty page shows up.  The thing is the 2-step verification is already set up in my account.  Could you please help with this? What am I missing? 

I'm trying to build an automation between Annature and Box. We use Box as a document management system and Annature as e-signing software. I would really like to automate when a document is signed in Annature, have it push back through into Box and stay down to the correct client folder. Just noting that we have Zapier set up but I'm just struggling to dot the i's and cross the t's and get it fully over the line. If anyone's got any experience in this, I'd love to hear from you. 

Hi,I have a service account that was invited into a few client’s folders. It was probably renamed and it is under developers console → Platform Apps → Name of app now. I got everything here as Authorized and enabled since Jan 2023. Client changed security and enforces 2FA now, which I do have for my account. If I go to to the Content Manager, I see nothing here. All folders I had access to are gone. From the folder’s perspective I see the automation user as Pending I’m also Co-owner in another folder and I have rights to resend the invitationit says it does sent the email but that email is automatically generated so I assumed it comes to me or ideally all owners of the app as listed here but nope, I didn’t receive anything nor other Admins. How am I supposed to accept the invitation to virtual email that doesn’t exist? My use case is that I want to upload files or create sub-folders in a given folder from our integration application. It is our client’s Box probably as Enterprise and th

I have the exact problem that is discussed here - Transfer owned folders | CommunityThe account that is using OAUTH has all Co-Admin management for user and file access based on what is seen in the Manage Users. And the application appears to have the needed rights. However, when attempting to move the content to an Admin account (which we do within the web portal) a 403 forbidden is received. The process seems to allow the transfer to the OAuth user so member to Co-Admin which doesn’t correlate with the error that is received.  I have not tried transferring ownership of the folder to the admin account that we are using for all the other folder storage but really feel like that is not going to work.  I really wish there was an easier way to do this but if anyone has done this and can validate that it will work, I would appreciate the response.

Hi there, we submitted our app mid July for review and haven't heard back from you. We haven’t heard back from the team after 10 days and reached out to [removed by moderator] but also don’t get a response. Do you have a rough ETA on the review? The app can be previewed here: https://app.box.com/integrations/NepcCkAiWm/i Best,Erhard.

We need to rotate the OAuth client secret for an existing production mobile application while older versions remain installed.Could you clarify:1. Can multiple client secrets remain active during migration?2. Does generating a new secret revoke the existing secret?3. Will existing access and refresh tokens remain valid?4. Can existing refresh tokens be used with the new secret?5. Will users need to authenticate again?6. What zero-downtime migration process do you recommend?7. Does rotation require another application review?8. When is it safe to revoke the previous secret?

I am unable to view option to submit my app for authorization. I am not sure why, please help. I have none of the tabs or options where I am able to submit the app for request.