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Session Id :
Power Automate
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OneDrive for Business

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Posted on by 2

Body:
Hola a todos,

Necesito ayuda con un problema persistente que comenzó el 9 de marzo de 2026. Mis flujos, que funcionaban correctamente, ahora fallan sistemáticamente en la acción "Create file" de OneDrive for Business.

Problemas detectados:

  • Error 404 (Not Found): A pesar de que la ruta de la carpeta se selecciona mediante el explorador de archivos del conector y es válida.

  • BadRequest: Ocurre incluso después de limpiar el nombre del archivo de caracteres especiales.

  • Bloqueo de archivos: Recibo el mensaje "A file with the same name is currently being saved to this site" en intentos consecutivos.

Pruebas realizadas:

  1. Limpieza de nombres: He usado funciones trim, replace y concat para asegurar que el nombre no tenga caracteres prohibidos ni espacios.

  2. Ruta de carpeta: He re-seleccionado manualmente la ruta usando el icono de carpeta (no escrita a mano).

  3. Cross-Connector Test: Si cambio la acción a SharePoint - Create File, el flujo funciona perfectamente usando los mismos datos, lo que descarta errores en la generación del contenido (Word Online).

  4. Alcance: El problema se replica en otros flujos independientes dentro del mismo tenant que también utilizan el conector de OneDrive.

Contexto técnico:

  • Región: southamerica.

  • Acción fallida: CreateFile (OneDrive for Business).

  • Error recurrente: NotFound / BadRequest.

¿Alguien más está experimentando problemas con el conector de OneDrive en esta región o sabe si hubo una actualización reciente en los límites de la API para marzo de 2026? Agradezco cualquier guía.

TRANSLATION 
 

Hello everyone,

Since March 9, 2026, several flows in my organization using the "OneDrive for Business - Create file" action have simultaneously stopped working without any configuration changes.

Identified Issues:

  • NotFound (404): The flow reports that the folder cannot be found, even though the path is manually selected using the connector's file picker.

  • BadRequest (400): This occurs even when the file name has been sanitized of any special characters.

  • Write Lock: The error "A file with the same name is currently being saved" persists across multiple retries.

Troubleshooting steps taken:

  1. Connector Isolation: When switching the action to SharePoint - Create File using the exact same parameters and dynamic content, the flow works perfectly. This confirms the issue is not with the file content generated by Word Online.

  2. Data Sanitization: I have applied trim, replace, and string functions to remove spaces, slashes (/), or colons (:) from file names.

  3. Regional Scope: The problem affects multiple independent flows within the same tenant. According to the logs, the client region is southamerica.

Is anyone else experiencing this? It seems like an API stability issue with the OneDrive connector in this specific region.

I have the same question (0)
  • David_MA Profile Picture
    14,761 Super User 2026 Season 1 on at
    What is the expression you are using to generate the filename and can you share a screen shot of how the create file action is configured?
  • DR-10031459-0 Profile Picture
    2 on at
    Hi! Well I use the responses that are recieved, I tried using a compose to eliminate all the forbidden characters but it didn't work. 
     
    As I said, using a Sharepoint connector worked, but I have limited space...
     
     
  • JR-10031710-0 Profile Picture
    2 on at
    Buen dia, lo mismo me ocurre, cuando creo el archivo o lo convierto a pdf con el onedrive me sale el mismo error a todos mis flujos que tengo.
    Adicional en mi Onedrive sale un mensaje de permitir cada vez que lo actualizo en la web.
     
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