The keywords in your account are nearing an unmanageable size.
Please consider refining your keyword lists and/or reducing the number of keywords within your account. This will ensure that your account includes the most targeted and relevant keywords possible. Click here to learn more about managing your keyword list.
What if you are promoting a lot of products say in the thousands, that would mean that you'll probably have a good number of keywords in your account. Is there going to be a side effect?
