File upload failed

1. Compare the filename extension with the formats shown in the current upload dialog.
2. Check the per-file size limit displayed in the upload dialog. DataFact cloud currently displays 200 MB for both tabular and other supported files.
3. Keep the selected batch at or below 100 files.
4. If the dialog shows total storage usage, confirm that the selected batch fits within the remaining allowance. -- means current usage could not be read; it does not mean zero usage.
5. Confirm that the target folder still exists and that you can add files there.
6. Retry failed items after checking the network; do not reselect files already shown as successfully uploaded unless a duplicate is intended.

An uploaded file still needs separate linking and processing before it becomes a Documents (Lite) or Documents (Excel) item.