How To Fix WSD_MESSAGE100 - Multiple materials creation not allowed; select only one material

SAP Error Message - Details

• Message type: E = Error

• Message class: WSD_MESSAGE - Message class for WSD

• Message number: 100

• Message text: Multiple materials creation not allowed; select only one material

What causes this issue?

The system cannot create multiple materials; it can only create one
material at a time.

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?

Either select only one search result, or do not select any search result
to create a material from scratch.
Material creation from the Enhanced Material Search function supports
the following scenarios for single material creation:
A material can be created from scratch in case no material search result
has been selected.
A material can be created using an existing material as a template
(material copy). Existing material data is used for new material values
and can then be changed by user.
A material can be created from a catalog search result (without a
material number). The data from the catalog item is used for the
material creation.
When the simplified material creation method is selected, data from the
reference material is used for missing material values. The fields used
in the simplified material creation need to be configured in advance in
Customizing for Logistics-General by choosing <ZK>Material Master ->
Enhanced Material Search with Creation -> Configure Simplified Creation
of a Material in the Material Search</>.

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_MESSAGE100 - Multiple materials creation not allowed; select only one material ?

  SAP Error Message:
  
  WSD_MESSAGE100 Multiple materials creation not allowed; select only one material
  
  Cause:
  This error occurs when you attempt to create or process multiple materials simultaneously in a transaction or function module that only supports handling one material at a time. The system expects a single material number as input, but multiple materials have been selected or passed, which is not allowed in this context.
  Common scenarios include:
  
  Using a transaction or report designed for single material processing but selecting multiple materials.
  Calling a BAPI or function module that only accepts one material number but passing a list or range.
  Uploading or creating materials via a tool or interface that restricts creation to one material per operation.
  
  
  Solution:
  
  Select only one material: When prompted to enter or select a material, ensure that only a single material number is provided.
  Process materials individually: If you need to create or process multiple materials, do so one at a time or use a batch processing tool designed for multiple materials.
  Check the transaction or program documentation: Verify if the transaction or report supports multiple materials. If not, use the appropriate tool or method for mass processing.
  Adjust input parameters: If you are using a custom program or interface, modify the input so that only one material is passed per call.
  Use mass processing tools: For creating multiple materials, consider using SAP standard tools like LSMW, BAPIs designed for mass material creation, or SAP S/4HANA's mass maintenance apps.
  
  
  Related Information:
  
  
  Transactions:  
  
  MM01 (Create Material) – typically single material creation.  
  MM17 (Mass Maintenance) – for mass changes but not creation.  
  LSMW or custom batch jobs for mass creation.
  
  
  
  BAPIs:  
  
  BAPI_MATERIAL_SAVEDATA – can be used for material creation but usually one material per call.
  
  
  
  Notes and Documentation:  
  
  Check SAP Notes related to material master creation restrictions.  
  Review the documentation of the specific transaction or program where the error occurs.
  
  
  
  
  Summary:
  
  The error WSD_MESSAGE100 indicates that the system does not allow multiple materials to be created or processed simultaneously in the current context. To resolve it, ensure only one material is selected or processed at a time, or use appropriate mass processing tools designed for handling multiple materials.