How To Fix IDMX166 - CFDI: Customer for FI document &1/&2/&3 can not be identified

IDMX166 - Overview

• Message type: E = Error

• Message class: IDMX - Localization Mexico - Digital Invoice

• Message number: 166

• Message text: CFDI: Customer for FI document &1/&2/&3 can not be identified

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message IDMX166 - CFDI: Customer for FI document &1/&2/&3 can not be identified ?

  The SAP error message IDMX166, which states "CFDI: Customer for FI document &1/&2/&3 can not be identified," typically occurs in the context of generating CFDI (Comprobante Fiscal Digital por Internet) documents in Mexico. This error indicates that the system is unable to identify the customer associated with a specific Financial Accounting (FI) document.
  
  Cause:
  
  Missing Customer Master Data: The customer master data may not be properly maintained or may be missing in the system.
  Incorrect Document Reference: The FI document referenced in the error message may not be linked to a valid customer.
  Data Inconsistencies: There may be inconsistencies in the data, such as incorrect customer numbers or missing entries in related tables.
  
  Configuration Issues: The configuration for CFDI processing may not be set up correctly, leading to issues in identifying customers.
  
  
  Solution:
  
  
  Check Customer Master Data:
  
  Verify that the customer master data exists for the customer associated with the FI document. You can do this by navigating