What's the process to exit a CSP Azure Plan and go back to direct billing?

It's possible to move back to a direct Microsoft billing relationship, though it typically requires more coordination than moving into CSP, since it's a less common direction. In general terms:

What's involved

• Your resources and tenant remain yours throughout — this is a billing relationship change, not a data migration.
• You'll need to establish a direct billing account with Microsoft if you don't already have one.
• Your current partner (or Microsoft) can usually guide the specific steps, since the exact process has changed over time.

If you're considering this, it's worth having a clear conversation with your current partner first — sometimes the underlying concern (cost, support quality, flexibility) can be addressed without a full exit.