Question:

After deleting documents in My Cart, why does the number of documents in the Cart icon not reflect the change?

Answer:

This is expected behavior in Vault for two reasons:  

• It increases performance in Vault, so it does not have to update records as often.
• It also informs the user that there were documents removed from Vault that were in the Cart if that user is not the one to delete the documents.

Related Documentation:

Vault User Documentation: Using Cart