Message type: E = Error
Message class:  /SHCM/EMPLOYEE_BL -  
Message number: 005
Message text: UserAlias is missing for employee &1.
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message /SHCM/EMPLOYEE_BL005 UserAlias is missing for employee &1 typically occurs in the context of the SAP Human Capital Management (HCM) module, particularly when dealing with employee data and user aliases. This error indicates that the system is unable to find a user alias for the specified employee, which is necessary for certain operations, such as accessing employee-related data or performing actions in the system.
Cause: Missing User Alias: The primary cause of this error is that the user alias (which links an employee to a user in the system) has not been created or is missing for the specified employee. Data Inconsistency: There may be inconsistencies in the employee master data or user data that prevent the system from finding the required alias. Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or create user aliases.
Solution: Create User Alias: Navigate to the transaction code PPOME or PA30 (depending on
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SHCM/EMPLOYEE_BL004 Fatal error during user creation for employee &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SHCM/EMPLOYEE_BL003 User creation for employee &1 failed.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SHCM/EMPLOYEE_BL006 Update on user for employee &1 failed.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SHCM/EMPLOYEE_BL007 Employee &1: error in inserting/updating the home address.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.