Using replica set tags for invoice categorization
Customer would like replica set tags added to the invoice as a column, in order to further categorize costs. In some instances, the customer has multiple products assigned to a single cluster, and putting the product name in the cluster won't suffice.
The current solution is to use the Invoice API, and then call the Cluster API, in order to programmatically build out a CSV containing the cluster tags as an additional column in the CSV.

We recently released tags on database deployments. You can apply tags to new or existing clusters or serverless instances.
https://www.mongodb.com/docs/atlas/tags/
We are planning to have these tags displayed in billing Invoices and we'd love to hear more from you. Reach out to me if you'd like to provide additional feedback about this feature request.
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We definitely look forward to building a better way to manage billing contexts in the future, likely involving tagging, as well as to making Atlas cluster tags more visible within the UI in some capacity in the future. We are working on a number of other priorities right now so this will not be something we'll see for a while, unfortunately.
-Andrew