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S_TCODE / authorization

You are not authorized to use transaction

SAP GUI or a called application refuses to start a transaction because the user lacks required start authorization.

Likely root causes

  1. S_TCODE value for the transaction is not present in an assigned active role.
  2. Role was changed but user comparison/buffer/session is stale.
  3. A different transaction is called internally and is not authorized.

What to inspect

  1. SU53 immediately after the failure.
  2. User roles and S_TCODE values in PFCG.
  3. SU56 authorization buffer.
  4. STAUTHTRACE/ST01 if the failed check is not visible in SU53.

Resolution path

  1. Grant only the required transaction/business authorization through the role-design process.
  2. Run user comparison/refresh and relogon when appropriate.
  3. Trace the actual failing transaction/check instead of adding SAP_ALL-style access.
  4. Retest under the affected user.

ERPClimb is an independent platform and is not affiliated with SAP SE.