How To Fix WN678 - Maintenance of plant &1 is incomplete; update fields for customer &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 678

• Message text: Maintenance of plant &1 is incomplete; update fields for customer &2

What causes this issue?

You want to assign a business partner to plant &V1& either in plant
maintenance or by means of distribution.
The data that links the plant, customer, and supplier master data has
not been persisted in the database. The persistence of this data is the
last step in plant maintenance. All other data has been stored.

System Response

The system cannot update the master data for customer &V2&; therefore,
it is not possible to assign a business partner to the plant.

How to fix this error?

Use the
<DS:TRAN.MDS_PPO2>Postprocessing Desktop</> to evaluate any errors that
were detected during the check of the role-specific data. Correct these
errors to complete maintenance of the plant.

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 WN678 - Maintenance of plant &1 is incomplete; update fields for customer &2 ?

  The SAP error message WN678 indicates that there is incomplete maintenance data for a specific plant and customer combination. This typically occurs in the context of customer master data or material master data, where certain required fields have not been filled out or updated correctly.
  Cause:
  
  Incomplete Data: The primary cause of this error is that certain mandatory fields for the specified plant and customer have not been maintained. This could include fields related to sales data, shipping data, or other relevant information that is necessary for processing transactions.
  Configuration Issues: There may be configuration settings in the system that require specific data to be maintained for certain plants or customers.
  Data Migration Issues: If data was migrated from another system or updated in bulk, some records may not have been fully populated.
  
  Solution:
  
  
  Check Customer Master Data:
  
  Go to the transaction code XD02 (Change Customer) or VD02 (Change Customer for Sales Area).
  Enter the customer number and the relevant sales area.
  Check if all required fields are filled out, especially those related to the plant in question.
  
  
  
  Check Material Master Data:
  
  Use transaction code MM02 (Change Material).
  Enter the material number and the plant.
  Ensure that all necessary views (like Sales, Purchasing, etc.) are properly maintained.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the SAP system to ensure that the required fields for the plant and customer are correctly defined.
  This may involve consulting with your SAP configuration team or reviewing the relevant customizing settings.
  
  
  
  Data Consistency Check:
  
  Run any available consistency checks or reports that can help identify incomplete records.
  Use transaction codes like SE16 or SE11 to query the relevant tables for missing data.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to this error message for any specific guidance or updates.
  
  
  
  Contact Support:
  
  If the issue persists after checking the above, consider reaching out to SAP support or your internal IT team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as XD02, VD02, MM02, and SE16.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles: Ensure that the user has the necessary authorizations to make changes to customer and material master data.
  
  By following these steps, you should be able to identify and resolve the issue causing the WN678 error message in SAP.