Every Gloriads blog article tagged Keywords.

Negative keywords stop your Amazon ad on searches you don't want: negative exact, negative phrase and negative products. Limits, delays, how to pick them.

Automatic targeting lets Amazon pick where your Sponsored Products ad shows; manual lets you choose keywords or products. When to use each, or both.

Amazon keyword match types decide which searches trigger your ad: broad for related searches, phrase if the search contains it, exact for the keyword.
Gloriads runs your Amazon Ads by rules you control, on all four ad types.