How To Fix WN754 - The field 'Update of Activity Consumption' must be initial

SAP Error Message - Details

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 754

• Message text: The field 'Update of Activity Consumption' must be initial

What causes this issue?

The field 'Update of Activity Consumption in the Quantity Structure' is
not initial.

System Response

The field 'Update of Activity Consumption in the Quantity Structure'
must be initial as long as the field 'Updating Is Active in Actual
Costing' is initial.

How to fix this error?

You must adapt either the field 'Updating Is Active in Actual Costing'
or the field ' field 'Update of Activity Consumption in the Quantity
Structure'.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WN754 - The field 'Update of Activity Consumption' must be initial ?

  The SAP error message WN754, which states "The field 'Update of Activity Consumption' must be initial," typically occurs in the context of project management or production planning when there is an issue with the configuration or data entry related to activity consumption in SAP.
  Cause:
  
  Field Configuration: The error often arises when the system expects the field for updating activity consumption to be empty (initial) but finds it filled with data. This can happen if the settings in the project or order are not aligned with the expected input.
  Data Entry Error: Users may inadvertently enter data in a field that should remain blank for the specific transaction or process being executed.
  Customizations or Enhancements: If there are custom developments or enhancements in the SAP system, they might be affecting the standard behavior of the field.
  
  Solution:
  
  Check Field Status: Review the configuration settings for the project or order type in the relevant customizing transaction (e.g., OPUK for project management). Ensure that the field for 'Update of Activity Consumption' is set correctly.
  Clear the Field: If the field is filled, try clearing it before saving or processing the transaction again. Ensure that it is left blank if the process requires it to be initial.
  Review User Input: Ensure that users are aware of the requirements for the field and provide training if necessary to prevent incorrect data entry.
  Consult Documentation: Check the SAP documentation or help files related to the specific module you are working with to understand the expected behavior of the field.
  Debugging: If the issue persists, consider debugging the transaction to see if there are any underlying issues or custom code that might be causing the error.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may be involved in the process, such as CJ20N (Project Builder) or CO02 (Change Production Order).
  SAP Notes: Search for SAP Notes related to error WN754 in the SAP Support Portal, as there may be specific patches or updates that address this issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.