How To Fix EAMS_BO278 - You must also select main operation &1 to copy suboperations

EAMS_BO278 - Overview

• Message type: E = Error

• Message class: EAMS_BO - Business Object Layer

• Message number: 278

• Message text: You must also select main operation &1 to copy suboperations

Self-Explanatory Message

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EAMS_BO278 - Details

• The SAP error message EAMS_BO278, which states "You must also select main operation &1 to copy suboperations," typically occurs in the context of maintenance planning and operations within the SAP system, particularly in the SAP PM (Plant Maintenance) module. This error indicates that when you are trying to copy suboperations, the main operation associated with those suboperations has not been selected.
  
  Cause:
  
  Missing Main Operation: The main operation that the suboperations are linked to has not been selected in the operation list.
  Data Integrity: The system requires that for any suboperation to be copied, the corresponding main operation must also be selected to maintain data integrity and ensure that the hierarchy of operations is preserved.
  
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Select the Main Operation:
  
  Go to the transaction where you are trying to copy the suboperations (e.g., IW31, IW32 for work orders).
  Ensure that you have selected the main operation (the operation that the suboperations