DB Instance class droprown is empty when attempting to modify existing RDS Database

Frequently when I see empty dropdowns on AWS frontend it is caused by the backend returning an informative error but the frontend not interpreting it or showing the error. I suggest watching your network traffic and looking endpoints not returning Http Status 200 and then checking the body of the Response.

Please use cli and it will work.

Hi There,

I understand you have received the notice that your current instances will be deprecated and wanted to change the DB instance Class but the field is empty and there are no options in the dropdown.

I strongly suggest that as a workaround you use the AWS CLI to perform the changes [1]

RDS modify a DB Instance [2]

Amazon Aurora Modifying an Aurora DB cluster [3]

I hope you find this information helpful.

======References=====

[1] https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rds/modify-db-instance.html

[2] https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.DBInstance.Modifying.html

[3] https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Modifying.html#Aurora.Modifying.Instance