Philip Gichuhi

Added to v2-preview [repo samples](https://github.com/microsoftgraph/msgraph-sdk-php/blob/feat/2.0.0/docs/Examples.md#upload-an-item)

Added to v2 preview samples as well - https://github.com/microsoftgraph/msgraph-sdk-php/blob/feat/kiota-preview/docs/Examples.md#upload-an-item

Unable to reproduce. 503s occur on the API service layer. The cause of error is outside the scope of the SDK. If this recurs please reopen the issue.

Thanks for providing context @darrelmiller. I'll revisit this in case we receive relevant customer feedback.

@jdlien your issue is addressed in #957

Hi @hassanacto. Thanks for reporting this. Are you able to share the response payload(s) you get for the 400's?

I've tried reproducing this using the code snippet you've provided and I seem to get 200s somewhat consistently. The erratic 400s still need to be looked into. However I noticed...

@hassanacto sorry I actually meant to ask what version of the API you're using (v1 or beta) but I'm guessing v1? I think your SDK version shouldn't be much of...

No further correspondence from OP. Closing this.

@muhamedRadwan @mankowitz thanks for reporting this. I'm unable to reproduce this behaviour. Please try calling `addHeaders(['Content-Type' => 'text/csv'])` before `upload()` or with the relevant [MIME type](https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types) and let me know...