The Activity Kanban view criteria appears to be fixed (hard-wired) to look for specific phrases.
- What is the criteria for an Activity to appear in the Customer Column?
- What is the exact criteria for an Activity to appear in the Deal Column?
I ask because I suspect you're looking for an exact word or phrase in Contacts/Accounts and Deals like the Stage Probability Mapping, and I've made some subtle changes to those Fields. For example, in sales speak, Closed only means Won - "Did you close the deal" doesn't mean did you lose it - it means did you win it? Lost means Lost. But if I have to change my Stage values back, so be it.
Further, I don't use "Customer" - a customer is someone who comes into a store and buys. A Client is someone who engages me as a Partner or Consultant to work with them.
But if would be better if you included the ability to edit the Queries behind the Customer and Deal Columns.