How To Fix /PM0/3FW_CHK_MESS021 - No subcontroller node exists for dialog variant &1 &2

/PM0/3FW_CHK_MESS021 - Overview

• Message type: E = Error

• Message class: /PM0/3FW_CHK_MESS -

• Message number: 021

• Message text: No subcontroller node exists for dialog variant &1 &2

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 /PM0/3FW_CHK_MESS021 - No subcontroller node exists for dialog variant &1 &2 ?

  The SAP error message /PM0/3FW_CHK_MESS021 No subcontroller node exists for dialog variant &1 &2 typically indicates that there is an issue with the configuration of a dialog variant in the SAP system. This error is often encountered in the context of the SAP Plant Maintenance (PM) module, particularly when dealing with the configuration of maintenance plans, task lists, or similar objects.
  
  Cause:
  
  Missing Configuration: The error suggests that the system is trying to access a subcontroller node that has not been defined for the specified dialog variant. This could be due to incomplete configuration or missing entries in the customizing settings.
  Incorrect Dialog Variant: The dialog variant specified in the error message may not be correctly set up or may not exist in the system.
  Transport Issues: If the configuration was recently transported from another system, it is possible that the transport did not include all necessary objects or that there were issues during