How To Fix WSTI_MODEL016 - You have no authorization for this application in plant &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WSTI_MODEL - Physical Inventory Retail Store

• Message number: 016

• Message text: You have no authorization for this application in plant &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WSTI_MODEL016 - You have no authorization for this application in plant &1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WSTI_MODEL016: You have no authorization for this application in plant &1
  
  Cause:
  This error occurs because the user trying to access or perform an action in the SAP system does not have the necessary authorization for the specified plant (organizational unit). In SAP, authorizations are strictly controlled, and access to certain applications or transactions is restricted based on roles and authorizations assigned to the user. The plant number (represented by &1 in the message) is the specific organizational unit for which the user lacks authorization.
  
  Explanation:
  
  The error is typically encountered in modules like SAP Plant Maintenance (PM), Materials Management (MM), or Production Planning (PP) where plant-specific data access is controlled.
  The authorization check fails because the user’s role does not include the required authorization object values for the plant.
  The authorization object commonly involved is M_PLNT_WRK (Plant/Work Center authorization) or similar, depending on the module.
  
  
  Solution:
  
  
  Check User Roles and Authorizations:
  
  Use transaction SU01 to check the user’s assigned roles.
  Use transaction PFCG to review the roles and their authorization objects.
  
  
  
  Identify Missing Authorization:
  
  Look for authorization objects related to plant access, such as:
  
  M_PLNT_WRK (Plant/Work Center)
  B_USERSTAT (User Status)
  Module-specific authorization objects (e.g., I_MATERIAL for MM)
  
  
  Verify if the plant number in question is included in the authorization values.
  
  
  
  Add Required Plant Authorization:
  
  Modify the user’s role(s) in PFCG to include the missing plant authorization.
  Add the plant number(s) to the relevant authorization objects.
  Generate and assign the updated role to the user.
  
  
  
  Test Access:
  
  After role update, have the user log off and log back in.
  Retry the transaction or application to confirm the error is resolved.
  
  
  
  
  Additional Information:
  
  
  Authorization Trace:
  
  Use transaction SU53 immediately after the error occurs to see which authorization check failed. This helps identify the exact missing authorization object and value.
  
  
  Audit and Security:
  
  Ensure that plant authorizations are granted according to the principle of least privilege to maintain system security.
  
  
  Common Transactions Involved:  
  
  PM: IW31, IW32 (Maintenance orders)  
  MM: ME21N, ME22N (Purchase orders)  
  PP: CO01, CO02 (Production orders)
  
  
  
  Related Notes and Documentation:  
  
  SAP OSS Notes related to authorization issues for specific modules.  
  SAP Help Portal documentation on authorization concepts.
  
  
  
  
  If you provide the exact transaction or module context, I can help pinpoint the authorization object and role setup more precisely.