Question:

Despite adding Open Activities and Approval History related lists to the Account page layout, none of them displays Offline.

Answer:

Open Activities and Approval History, which are standard SFDC (Saleforce.com) related lists, are not supported Offline. Customers can submit an Enhancement Request.  

Related Documentation:

CRM Knowledge Article: How to Submit an Enhancement Request?

Send us your feedback: We are always looking for feedback to help improve our Knowledge Base! Please let us know if this article is helpful or provide feedback on how we can improve your experience by clicking here.