Increase your Amazon Q index capacity

To increase your index capacity:

Go to the Amazon Q for Business console. On the left select Applications then click on the name of your application in the main window.

In the top right, choose edit. On the first screen choose Update at the bottom right without making changes. On the second screen the bottom field is the number of units of Indexing Capacity. Update as needed and click next through the next several screens.

You can also do this through the command line:
https://docs.aws.amazon.com/cli/latest/reference/qbusiness/update-index.html

aws qbusiness  update-index --application-id <value> --index-id <value> --capacity-configuration <value>

Hope this helps!