How To Fix KN109 - Entry not allowed

KN109 - Overview

• Message type: E = Error

• Message class: KN - Reporting for Costing

• Message number: 109

• Message text: Entry not allowed

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message KN109 - Entry not allowed ?

  The SAP error message KN109 ("Entry not allowed") typically occurs when there is an attempt to create or modify a customer master record in a way that violates the system's validation rules or configuration settings. This error can arise in various scenarios, such as when trying to enter a customer with an invalid account group, or when certain fields are not filled out correctly.
  Causes of KN109 Error
  
  Invalid Account Group: The account group specified for the customer may not be allowed for the transaction you are trying to perform.
  Field Restrictions: Certain fields may have restrictions based on the configuration of the customer master data. For example, mandatory fields may not be filled out.
  Data Inconsistencies: There may be inconsistencies in the data being entered, such as incorrect formats or values that do not meet the defined criteria.
  Authorization Issues: The user may not have the necessary authorizations to create or modify the customer