How To Fix M8818 - Error reading layer & & & &

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 818

• Message text: Error reading layer & & & &

What causes this issue?

An error occurred when the system tried to read the layer.

How to fix this error?

Inform your systems administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8818 - Error reading layer & & & & ?

  The SAP error message M8818, which states "Error reading layer & & & &," typically occurs in the context of material management and inventory management processes. This error is related to issues with the data layers in the material master or the stock data for a material.
  Causes:
  
  Data Layer Issues: The error often indicates that the system is unable to read a specific data layer for a material. This could be due to missing or corrupted data in the database.
  Authorization Issues: The user may not have the necessary authorizations to access the specific data layer.
  Configuration Issues: There may be configuration problems in the material master setup or in the way the layers are defined.
  Database Issues: There could be underlying database issues, such as locks or inconsistencies in the data.
  
  Solutions:
  
  Check Material Master Data: Verify that the material master data is complete and correctly configured. Ensure that all necessary views and data layers are maintained.
  Authorization Check: Ensure that the user has the appropriate authorizations to access the material and its layers. This can be checked in the user roles and profiles.
  Database Consistency Check: Run database consistency checks to identify and resolve any inconsistencies. This may involve using transaction codes like SE14 (Database Utility) or SE11 (Data Dictionary).
  Recreate the Layer: If a specific layer is corrupted, it may be necessary to recreate it. This can involve deleting and re-creating the material or the specific data layer.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), MM02 (Change Material), and MM01 (Create Material) to manage material master data.
  SAP Documentation: Review SAP documentation related to material management and inventory management for best practices and troubleshooting steps.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the M8818 error in SAP.