How To Fix RP090 - You are not authorized to use the requested function

RP090 - Overview

• Message type: E = Error

• Message class: RP - Error Messages for Infotype Module Pools

• Message number: 090

• Message text: You are not authorized to use the requested function

What causes this issue?

You want to change report authorization classes with this function but
do not have the required authorization.

How to fix this error?

For the object S_PROGRAM (ABAP: program execution checks), you require
an authorization with the value '*' in the P_GROUP and P_ACTION fields.

Error message extract from SAP system. Copyright SAP SE.

RP090 - Details

• The SAP error message RP090, which states "You are not authorized to use the requested function," typically indicates that the user does not have the necessary authorizations to perform a specific action or access a particular function within the SAP system. This can occur in various contexts, such as when trying to execute a transaction, access a report, or perform a specific operation.
  Causes:
  
  Missing Authorization Roles: The user may not have been assigned the appropriate roles that grant access to the required transaction or function.
  Authorization Object Restrictions: Even if a user has a role, specific authorization objects within that role may not grant the necessary permissions.
  Profile Issues: The user profile may not be correctly configured, leading to insufficient access rights.
  Changes in Authorization: Recent changes in the authorization roles or profiles may have inadvertently removed access.
  User Status: The user account may be locked or inactive, preventing access to certain functions.
  
  Solutions:
  
  Check User Roles: