How To Fix AD999 - Activation currently locked (F1)

AD999 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 999

• Message text: Activation currently locked (F1)

What causes this issue?

An activation lock is always set when you start an activation for a
single ABAP/4 Dictionary object or with the mass activating program.
This lock prevents objects of different object classes from being
activated in parallel, which could result in inconsistencies in the
ABAP/4 Dictionary. The lock is automatically cancelled when the
activation has ended. If an activation terminates, the lock first
remains in effect. It cancels itself after about 10 minutes.

System Response

The activation task is rejected.

How to fix this error?

Repeat the activation after a few minutes.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD999 - Activation currently locked (F1) ?

  The SAP error message AD999 "Activation currently locked" typically occurs when there is an issue with the activation of a transport request or when an object is locked in the system. This can happen for various reasons, such as:
  Causes:
  
  Transport Request Lock: The transport request that contains the changes you are trying to activate is locked, possibly because it is being processed by another user or system.
  Object Lock: The specific object you are trying to activate is locked by another user or session.
  Incomplete Activation: Previous activation attempts may have failed, leaving the system in a state where it cannot proceed with new activations.
  System Configuration: There may be configuration settings that prevent activation under certain conditions.
  
  Solutions:
  
  
  Check Lock Entries:
  
  Use transaction code SM12 to check for lock entries. Look for locks related to the transport request or the specific object you are trying to activate.
  If you find locks that are no longer needed, you