"Additional endorsements" refers to additional statements of support or approval. It means that someone is expressing more positive feedback or recommendation for a person, product, or idea. Full definition
You may need more insurance than you think, or you may want to add additional endorsements for special valuables, artwork or collections you want insured. (trustedchoice.com)
Therefore, if you own any very valuable property that may cause you to exceed these limits, you may need to purchase additional endorsements in order to have full coverage. (trustedchoice.com)
If you have a lot of expensive electronic equipment, artwork or collectibles or own anything of extraordinary value, you may need additional endorsements to cover them fully. (trustedchoice.com)