How To Fix WP405 - Material group & cannot be converted

SAP Error Message - Details

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 405

• Message text: Material group & cannot be converted

What causes this issue?

The conversion rule for material group &V1& is unknown.

System Response

The relevant record cannot be prepared in POS - interface outbound
processing. The relevant document cannot be posted in the SAP system in
POS - interface inbound processing.

How to fix this error?

<DS:SIMG.W_DF_VK_0123.SIMG_OPOS>Define a conversion rule for the
material group </>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WP405 - Material group & cannot be converted ?

  The SAP error message WP405: "Material group & cannot be converted" typically occurs during data conversion or migration processes, such as when using LSMW (Legacy System Migration Workbench), BAPIs, or IDocs to create or update material master data.
  
  
  Cause:
  
  The material group value provided in the input data does not exist or is not valid in the SAP system.
  The system tries to convert the material group code (usually a key or ID) to an internal format or check its existence but fails because the material group is missing or incorrectly maintained.
  This can happen if:
  The material group is not created in the system.
  The material group code is mistyped or contains invalid characters.
  The material group is inactive or deleted.
  The conversion routine or mapping for material group is incorrect or missing.
  
  
  
  
  
  Solution:
  
  
  Check Material Group Master Data:
  
  Go to transaction OMS2 (Material Groups) or SPRO > Logistics General > Material Master > Basic Settings > Material Groups.
  Verify that