How To Fix WSD_MESSAGE019 - Enter material number

SAP Error Message - Details

• Message type: E = Error

• Message class: WSD_MESSAGE - Message class for WSD

• Message number: 019

• Message text: Enter material number

What causes this issue?

The material number is missing. This material type does not allow an
internal material number range.
The material cannot be created since there is no assigned material
number.

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?

Enter a material number.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WSD_MESSAGE019 - Enter material number ?

  SAP Error Message:
  
  WSD_MESSAGE019 – Enter material number
  
  Cause:
  This error message appears when a required material number field is left empty during a transaction or data entry process in SAP. The system expects a material number to proceed, but none was provided.
  Typically, this occurs in scenarios such as:
  
  Creating or changing purchase orders, goods movements, or production orders where the material number is mandatory.
  Data entry screens or custom transactions where the material number is a key field.
  Integration or interface processes where material data is incomplete.
  
  
  Solution:
  
  Enter a valid material number: Ensure that the material number field is filled with a correct and existing material number in the system.
  Check material master data: Verify that the material number you are entering exists in the material master (transaction MM03).
  Field input validation: If the field is populated via a custom program or interface, check the data source to ensure the material number is passed correctly.
  Mandatory field check: If this is a custom development or enhancement, confirm that the material number field is set as mandatory and that the user interface enforces this.
  User training: Make sure users understand that the material number is required and how to find or select the correct material.
  
  
  Related Information:
  
  Transaction codes: MM01 (Create Material), MM02 (Change Material), ME21N (Create Purchase Order), MIGO (Goods Movement)
  Material master: The material number is a key identifier in SAP logistics and must be maintained properly.
  Message class: WSD_MESSAGE (or similar) – check message class in SE91 for more details.
  Debugging: If the error occurs unexpectedly, use transaction SE91 to look up the message text and SE80 or SE38 to check the program or user exit raising the message.
  SAP Notes: Search SAP Support Portal for notes related to WSD_MESSAGE019 or material number validation issues.
  
  
  If you provide the exact transaction or context where this error occurs, I can help with more specific troubleshooting steps.