reasons why certificate is not yet validated

thanks! i used the amazon lightsail dashboard to create the CNAME.

I will use your response and see what i can do! I need to locate this ACM webpage. Thank you! (I will update here my experience if it might help others)

Thank you for sharing the information about using Lightsail.

Please forget about the method I described as it does not use Lightsail.

I have looked again and here are some documents that may be helpful. [1] [2] [3]

[1] Verify an SSL/TLS certificate in Amazon Lightsail | Lightsail Documentation
https://lightsail.aws.amazon.com/ls/docs/en_us/articles/verify-tls-ssl-certificate-using-dns-cname-https

[2] Installing SSL in Amazon Lightsail - Stack Overflow
https://stackoverflow.com/questions/64310818/installing-ssl-in-amazon-lightsail

[3] Build your own domain and SSL compatible WordPress with Amazon Lightsail (VPS) ($3.50-/month) | DevelopersIO
https://dev.classmethod.jp/articles/how-to-install-original-domain-ssl-wordpress-with-amazon-lightsail/#toc-17

If there are any errors in the stuck, it would be good to investigate with CloudTrail.

For example, open CloudTrail in the region where you are using Lightsail, select Event Source, and type "lightsail.amazonaws.com".
Additionally, click on the settings icon in the upper right corner so that you can view errors.

On the settings screen, turn on Error code.

Or, if you are investigating a problem with ACM, enter "acm.amazonaws.com" in the Event Source.

If there are errors, searching by error may give you new clues.

I hope this is helpful.

I need more help. I used the ACM to successfully create a certificate and it was issued. however, when i go to my lightsail distribution and look at the 'custom domain' tab, there is only an option to create a certificate there (which i did and it is stuck in the validation phase; it has a different CNAME than the certificate i successfully made in the ACM), not to use a certificate that i created in the ACM. what am i doing wrong?