While custom fields are currently enabled on the Inbox level, having these fields enabled a step further on the Channel level – the actual email customers use for example – would allow you to dynamically insert phone numbers, names, and other important information into your communications. This way, you don't have to maintain a unique set of templates or signatures for each Channel in your Front App.
For example, if want to create a signature for each Channel with a unique phone number, you currently have to type each one into each signature. With this change, the number would be stored on the channel. Then, you would only need to maintain one signature and insert the channel phone number variable.
This would save time, make it easier for reps to find and communicate the right information to all customers, and make maintaining your Front platform easier as well.