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You will receive a message stating that your rate card gets created and receive a message when done. Afterward check your newly created rate card and update the rates. 

Modify Ad Prices

An easy way of updating your prices is to use list views. In Classic or lightning Salesforce allows mass editing. Therefore create a list view with a filter that shows the Ad Prices (Example: all prices belonging to one Rate Card) you like to modify and then change and save.

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