How To Fix W0166 - An error occurred when the data for site &1 was being read

W0166 - Overview

• Message type: E = Error

• Message class: W0 - Customizing - ISR

• Message number: 166

• Message text: An error occurred when the data for site &1 was being read

What causes this issue?

An internal error has occurred.

System Response

INCLUDE ISR_VERARBEITUNG OBJECT DOKU ID TX

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Check the site data for site &V1&. The error occurred when the function
module location_select_plant , which reads the site data, was called.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W0166 - An error occurred when the data for site &1 was being read ?

  SAP Error Message:
  W0166 – "An error occurred when the data for site &1 was being read"
  
  
  Cause:
  This warning message typically occurs when SAP tries to read data related to a specific site (plant, storage location, or organizational unit) but encounters an issue. The cause can be one or more of the following:
  
  The site (plant or organizational unit) specified does not exist or is not maintained in the system.
  The site data is incomplete or inconsistent in the master data tables.
  Authorization issues preventing the system from reading the site data.
  Technical problems such as database inconsistencies or missing entries in related customizing tables.
  The site might be inactive or flagged for deletion.
  
  
  
  Solution:
  To resolve the W0166 warning, follow these steps:
  
  
  Check Site Master Data:
  
  Verify that the site (plant, storage location, etc.) exists in the system.
  Use transaction codes like OX10 (for plants), OX09 (for storage locations), or relevant customizing transactions to check the site data.
  Ensure the site is