Importing cafe sales into Tessitura?

The cafe at our museum is changing operator and my CFO is asking if there is anyway to integrate cafe sales data with Tessitura. The only ecosystem partner for POS currently is SalesVu, which won't be used. Does anyone import this kind of data regularly? I can see setting up performances for items -- but do you need to set them up daily? What do you do if the menu changes regularly? Does anyone use a stored procedure to automate the import? Or is this a manual import every day? or week? Any insight would be appreciated.

Cross posting in Admin and IT forum.

Thanks!
Anne Robichaux
CRM Administrator
The Historic New Orleans Collection.