The contacts from the list don't get uploaded

[L26102]

I uploaded the list. The system says the upload is complete but none of the contacts actually get uploaded and the list stays blank.

[William_A]

Hello @L26102 ,

I'm checking your contact import/export activity, and I'm seeing lots of recent uploads, with many of them simply being updates to existing contacts. I'm also seeing a lot of failed imports. Did you receive a particular error when those imports failed? Is the file you're trying to import formatted properly?