How To Fix AQ904 - Target position is already occupied! Go to a different position

AQ904 - Overview

• Message type: E = Error

• Message class: AQ - Message texts for SAP Query

• Message number: 904

• Message text: Target position is already occupied! Go to a different position

Self-Explanatory Message

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.

What else can you do?

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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.

Smart SAP Assistant

• What is the cause and solution for SAP error message AQ904 - Target position is already occupied! Go to a different position ?

  The SAP error message AQ904 "Target position is already occupied! Go to a different position?" typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where you are trying to assign a resource, location, or other entity to a position that is already occupied by another entity.
  
  Cause:
  
  Resource Conflict: The target position you are trying to assign a resource to is already occupied by another resource or entity.
  Planning Data Issues: There may be inconsistencies in the planning data or master data that lead to this conflict.
  Incorrect Configuration: The configuration settings for the planning area or resource allocation may not be set up correctly, leading to conflicts.
  User Error: The user may be attempting to assign a resource to a position without checking its current occupancy status.
  
  
  Solution:
  
  Check Current Occupancy: Before assigning a resource, check the current occupancy of the target position. You can do this by reviewing the