What do I do if the 0007-00000203 error code is returned?-Object Storage Service(OSS)-阿里云帮助中心

Problem description

The request for a callback URL fails.

You initiated a request for a callback URL, but the returned HTTP status code is not 200 OK. Possible causes:

The callback server is not started.
The callbackUrl parameter does not exist in the upload callback request.
The callback service works as expected, but the network between Object Storage Service (OSS) and the callback server is disconnected.

None.

Check the code logic deployed on the callback server, or try to use code or Postman to send a POST request to the callback server to check whether the response content is HTTP/1.1 200 OK.
Include and configure the callbackUrl parameter in the request during object upload. For more information, see Upload callbacks.
Check whether the firewall is enabled for your server. If the firewall is enabled for your server, you cannot use the external network to access OSS resources.

For more information about the causes of and solutions to HTTP status code 203, see HTTP status code 203.
For information about the principles of the upload callback feature and how to use the feature, see Upload callbacks and Callback.
For more information about the common errors that you may encounter when you configure upload callbacks and the causes of and solutions to these errors, see Upload callbacks.
For more information about how to obtain a signature from the server in various programming languages based on POST policies, configure upload callbacks, and use form upload to upload data to OSS, see Overview.
For more information about how to set up an OSS-based direct data transfer service for mobile apps and configure upload callbacks, see Set up upload callbacks for mobile apps.