How To Fix WB818 - Customer &1 is not the reference customer for layout module &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WB - Messages for assortment list

• Message number: 818

• Message text: Customer &1 is not the reference customer for layout module &2

What causes this issue?

The customer is not the reference customer for the layout module.

System Response

When data is exported, this does not have any effect. The message is a
warning only. The data relevant to the customer entered, and not the
reference customer, is selected.

How to fix this error?

Call the function module again with the correct reference customer or
maintain the layout module in
<DS:SIMG.W_OE_EG_WL_0222.SIMG_OWER>Customizing</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WB818 - Customer &1 is not the reference customer for layout module &2 ?

  The SAP error message WB818 indicates that the specified customer is not the reference customer for the layout module you are trying to use. This error typically occurs in the context of SAP's layout management, particularly when dealing with customer-specific layouts for documents or reports.
  Cause:
  
  Incorrect Customer Reference: The customer you are trying to use does not have the necessary reference set up for the specified layout module.
  Missing Configuration: The layout module may not be properly configured to include the customer in question.
  Data Inconsistency: There may be inconsistencies in the data or configuration settings that prevent the system from recognizing the customer as a valid reference.
  
  Solution:
  
  
  Check Customer Configuration:
  
  Go to the configuration settings for the layout module in question.
  Verify that the customer is correctly assigned as a reference customer for that layout module.
  
  
  
  Assign Reference Customer:
  
  If the customer is not assigned, you may need to assign them as a reference customer for the layout module. This can typically be done in the customizing settings of the relevant module.
  
  
  
  Review Layout Module Settings:
  
  Ensure that the layout module is correctly set up and that it includes the necessary parameters for the customer you are working with.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific instructions on how to configure layout modules and reference customers.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date, as there may be patches or updates that address known issues related to layout modules.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the configuration and settings, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use specific transaction codes related to layout management, such as WB02 (Change Layout) or WB01 (Create Layout).
  Customizing Path: The path to configure layout modules can typically be found under the SAP Easy Access Menu: Logistics -> Sales and Distribution -> Master Data -> Business Partners -> Customer -> Layout Management.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to make changes to customer and layout configurations.
  
  By following these steps, you should be able to resolve the WB818 error and successfully use the desired layout module for the specified customer.