How To Fix EM464 - User &2 in client &3 is blocking activity group &1; display only

EM464 - Overview

• Message type: E = Error

• Message class: EM - IS-U Migration

• Message number: 464

• Message text: User &2 in client &3 is blocking activity group &1; display only

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EM464 - User &2 in client &3 is blocking activity group &1; display only ?

  The SAP error message EM464 indicates that a specific user is blocking an activity group in a particular client, and as a result, the system is set to "display only" mode for that activity group. This typically occurs in the context of SAP development environments, where certain users may have locked an activity group to prevent changes by others.
  
  Cause:
  
  User Locking: The user specified in the error message has locked the activity group, which means that no other users can make changes to it until the lock is released.
  Development Environment: This is common in development environments where multiple developers may be working on the same objects or activity groups.
  Transport Requests: If a transport request is being processed or is in a locked state, it can also lead to this error.
  
  
  Solution:
  
  Identify the User: Check who the user is that is blocking the activity group. This can be done using transaction codes like