# Uppy listparts when multipart upload already complete

**URL:** <https://community.transloadit.com/t/uppy-listparts-when-multipart-upload-already-complete/17003>\
**Category:** Uppy\
**Created:** [February 13, 2024, 4:40pm UTC](https://community.transloadit.com/t/uppy-listparts-when-multipart-upload-already-complete/17003 "2024-02-13T16:40:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jbanton](https://avatars.discourse-cdn.com/v4/letter/j/b3f665/32.png) [@jbanton](https://community.transloadit.com/u/jbanton)\
**Post date:** [February 13, 2024, 4:40pm UTC](https://community.transloadit.com/t/uppy-listparts-when-multipart-upload-already-complete/17003/1 "2024-02-13T16:40:50Z")

</div>

I’m using uppy with my own custom backend. Occasionally I see uppy sending a listparts request when the upload has already finished. How should I respond to this to tell uppy to not try to re-upload that file? Right now my backend is erroring out and returning a 400, but I’m not sure if that is what I should do.