How To Fix WZ402 - A subtype must be selected

SAP Error Message - Details

• Message type: E = Error

• Message class: WZ - Workflow: Model objects

• Message number: 402

• Message text: A subtype must be selected

What causes this issue?

You want to extend an object type supplied by SAP. This is not
possible. You can only extend an object type you created.

System Response

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

How to fix this error?

From the list of all subtypes, select the one that you want to extend
and repeat the process.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WZ402 - A subtype must be selected ?

  Certainly! Here's a detailed explanation for the SAP error message WZ402: "A subtype must be selected":
  
  Error Message: WZ402 - "A subtype must be selected"
  
  Cause:
  This error occurs when you are trying to create or process a document or master data in SAP that requires a subtype to be specified, but no subtype has been selected or entered.
  
  In SAP, certain document types or master data objects are further divided into subtypes to specify more detailed categories or variations.
  The system expects a subtype to be chosen to proceed, but the field is either left blank or an invalid subtype is entered.
  This is common in modules like SAP FI (Financial Accounting), SAP CO (Controlling), or SAP HR (Human Resources) where document types or infotypes have subtypes.
  
  
  Where it commonly occurs:
  
  When creating or posting financial documents (e.g., vendor invoices, customer payments) where document subtypes are defined.
  When maintaining master data that requires subtype classification (e.g., asset master records, personnel administration infotypes).
  In workflow or configuration steps where subtype classification is mandatory.
  
  
  Solution:
  
  
  Select a valid subtype:
  
  Check the field where the subtype is required.
  Use the dropdown or F4 help to select a valid subtype.
  Ensure the subtype corresponds correctly to the document type or master data you are working with.
  
  
  
  Check configuration:
  
  If no subtypes appear or the correct subtype is missing, verify the configuration in the IMG (Implementation Guide).
  For example, in Financial Accounting:
  
  Go to SPRO ? Financial Accounting ? Document ? Document Types ? Define Document Subtypes.
  Ensure that the required subtypes are defined and assigned properly.
  
  
  
  
  
  Data consistency:
  
  Make sure that the document type or master data type you are using is correctly linked to the subtype.
  Sometimes customizations or transports may cause inconsistencies.
  
  
  
  User input validation:
  
  Train users to always select the subtype when required.
  Implement input checks or make the subtype field mandatory if possible.
  
  
  
  
  Additional Information:
  
  Transaction codes: The error can appear in various transactions depending on the module, e.g., FB01 (Post Document), FK01 (Create Vendor), PA30 (Maintain HR Infotypes).
  Debugging: If unsure why the subtype is required, check the program or user exit where the error is triggered.
  SAP Notes: Sometimes SAP releases notes related to subtype handling for specific modules or versions. Check the SAP Support Portal for relevant notes.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WZ402 - A subtype must be selected
  
  
  Cause
  Subtype field is empty or invalid when required
  
  
  Solution
  Select a valid subtype; check configuration and data consistency
  
  
  Modules
  FI, CO, HR, and others where subtypes are used
  
  
  Where to check
  Document type/subtype configuration in SPRO
  
  
  
  
  If you provide the specific transaction or module where you encountered this error, I can give more tailored guidance.