Difference in Uploading Document VS Attached File in Chat

Uploading document is the ingestion of document and knowledge into the stored knowledgebase.

As for local attachment in chat, those attachment are only temporarily uploaded for that chat session, it will not be stored in knowledgebase.

 Refer to the attached link for more information:

1. https://primustech.freshdesk.com/en/support/solutions/articles/159000412961-document-ingestion-upload-or-delete-documents

2. https://primustech.freshdesk.com/en/support/solutions/articles/159000428899-local-file-attachment-in-chat