Amazon allows you to set the metadata when you setup your book through the KDP interface, so you will want to think about it before publishing. On Amazon, some readers will completely ignore your book if it has zero reviews, because there will always be 5 other books for them to choose from. Getting the first early reviews is hard, but do not get discouraged, and whatever you do, do not cheat, Amazon will find out. Nobody knows precisely how the Amazon ranking algorithm works, but we do know that it is highly correlated with volume of sales over short periods of time. You cannot ‘game the system’ but understanding that high volumes of sales lead to better rankings can help you plan a successful marketing strategy.
You can read more here: https://www.writtenwordmedia.com/how-to-market-book-amazon/
Apart from that, you can checkout KDP link as well to learn more: https://kdp.amazon.com/en_US?ref_=kdpgp_p_in_psg_bt_ad1&gclid=Cj0KCQiAx9mABhD0ARIsAEfpavR-Jr6d82e9mC_BlOgiYJk24Eo_YQiw4Txoskzij_mcLkQ1fjxuU1IaAhV5EALw_wcB
Besides if you do have any questions give me a call: https://clarity.fm/joy-brotonath