How To Fix /SAPAPO/DMRES804 - Reference resource from resource &1 is unknown

/SAPAPO/DMRES804 - Overview

• Message type: E = Error

• Message class: /SAPAPO/DMRES -

• Message number: 804

• Message text: Reference resource from resource &1 is unknown

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/DMRES804 - Reference resource from resource &1 is unknown ?

  The SAP error message /SAPAPO/DMRES804 indicates that there is an issue with a reference resource in the SAP Advanced Planning and Optimization (APO) module. Specifically, the message states that the reference resource from resource &1 is unknown. This typically occurs in the context of demand management or production planning when the system cannot find the specified resource.
  
  Cause:
  
  Resource Not Defined: The resource specified in the error message may not be defined in the system. This could happen if the resource was deleted or never created.
  Incorrect Configuration: There may be a configuration issue where the resource is not properly linked to the planning object or master data.
  Data Inconsistency: There could be inconsistencies in the master data, such as missing or incorrect entries in the resource master data.
  Transport Issues: If the system has recently undergone a transport of changes, the resource may not have been included or properly activated in the target system.
  
  
  Solution:
  
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