How To Fix W7019 - Error reading material type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: W7 - Message Class for Value-Only Based Inventory Management

• Message number: 019

• Message text: Error reading material type &1

What causes this issue?

Material type &V1& of the entered material does not exist.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W7019 - Error reading material type &1 ?

  Certainly! Here's a detailed explanation for the SAP error message W7019: "Error reading material type &1":
  
  Error Message
  W7019: Error reading material type &1
  
  &1 is a placeholder for the material type code that the system attempted to read.
  
  
  Cause
  This warning message typically occurs when the system tries to read or access a material type that:
  
  Does not exist in the system.
  Has been deleted or is inactive.
  The user or process does not have authorization to read the material type.
  There is a data inconsistency or customizing issue related to material types.
  The material master record references a material type that is not maintained in the system.
  
  
  When does it occur?
  
  During material master creation or change (transaction MM01, MM02).
  When running reports or programs that read material master data.
  During data migration or interface processing where material types are referenced.
  In custom developments or user exits that read material type data.
  
  
  Solution / Troubleshooting Steps
  
  
  Check Material Type Existence:
  
  Go to transaction OMS2 (Material Types).
  Verify if the material type code shown in the message (&1) exists.
  If it does not exist, you need to create or correct the material type.
  
  
  
  Check Material Master Data:
  
  Verify the material master record for the material type field.
  Ensure the material type assigned to the material is valid and active.
  
  
  
  Authorization Check:
  
  Ensure the user has the necessary authorization to read material types.
  Check authorization objects like M_MATE_MAT.
  
  
  
  Data Consistency:
  
  Run consistency checks on material master data.
  Use transaction MM17 or other data correction tools if needed.
  
  
  
  Custom Code / Interfaces:
  
  If the error occurs in custom programs or interfaces, check the code logic.
  Ensure the material type is correctly passed and exists in the system.
  
  
  
  Transport or Client-Specific Issues:
  
  If the material type was recently transported, verify the transport logs.
  Check if the material type is maintained in the current client.
  
  
  
  
  Additional Information
  
  Material Types define the attributes and behavior of materials in SAP (e.g., raw materials, finished products).
  The system uses material types to control fields, number ranges, and other settings.
  Missing or incorrect material types can cause issues in procurement, inventory, and production processes.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  W7019: Error reading material type &1
  
  
  Cause
  Material type &1 does not exist or is inaccessible
  
  
  Solution
  Verify and maintain material type in OMS2; check material master data; ensure authorizations; fix data inconsistencies
  
  
  Transactions
  OMS2 (Material Types), MM01/MM02 (Material Master), SU53 (Authorization check)
  
  
  
  
  If you provide the exact material type code (&1) or the context in which the error occurs, I can help you with more specific guidance.