"The essential part in management of AdWords Accounts is managing the Keywords. Keywords drive traffic, bring potential customers, and increase the sale. Google AdWords Account history comprises keyword performance, the keyword CTR, etc.
If the keywords performance track record is low, it means the Account history is not well off. To keep the history you need , you must maintain the performance of your keywords. The first most important part for a maintained account is, "do not keep the keywords in your ad group that has not triggered any adds, DELETE them straight away or optimize them to trigger ad."
Delete KWs which are not triggering ad will help with account history? Is that true? Can I just pause them instead of deleting? coz want to know what kws have been tried and not working and why not working etc.