Personally, less and more informative communication sessions feel more personal than if you were to do one repetitively, so I will go with a few times... a month. Too much communication might feel overwhelming and create a negative image in the customer's mind but also not too little which might lead to the customer forgetting you or your brand. Just enough to reinforce your brand in their mind is key. Of course, only you know what strategy works for your business models as they are distinctly different. more

Every week because they are the backbone to our sales output.

Every week because they are the backbone to our sales output.

On a daily basis since we offer services

Depends with the service or product you are providing, but always be available for your customers.

And depends on the customer as well. Some require frequent communication, some not...

it depends on service and product.