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M
49
Easy Fix
MongoDB · Database Server & Atlas
MongoDB server reported: Invalid Role Modification.
Quick Answer
Error code 49 on your MongoDB Database Server & Atlas means: MongoDB server reported: Invalid Role Modification.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
MONGO-ATLAS-DEDICATEDMONGO-ATLAS-SERVERLESSMONGO-COMM-6.0MONGO-COMM-7.0MONGO-COMM-8.0MONGO-ENT-6.0MONGO-ENT-7.0MONGO-ENT-8.0
Likely Causes
  1. MongoDB returned code 49 (InvalidRoleModification) while processing this request path.
  2. The caller identity was valid but lacked required privileges for this action.
  3. Session or token context was stale, revoked, or scoped to a different tenant/project.
How to Fix It
1
Review logs/telemetry for code 49 (InvalidRoleModification) and capture the exact command and parameters that triggered it.
2
Re-check account/role bindings, tenant scope, and credential freshness before retrying.
3
Validate auth configuration in code and environment variables against the current deployment.
4
Rotate credentials if needed and run a least-privilege permission audit for this operation.
5
Add monitoring for recurring InvalidRoleModification events so future incidents are detected and triaged faster.
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Related Error Codes
12456
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