How To Fix /SAPAPO/VMI_APO029 - Input data incorrect; Customizing entry not unique

/SAPAPO/VMI_APO029 - Overview

• Message type: E = Error

• Message class: /SAPAPO/VMI_APO -

• Message number: 029

• Message text: Input data incorrect; Customizing entry not unique

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

/SAPAPO/VMI_APO029 - Details

• The SAP error message /SAPAPO/VMI_APO029 Input data incorrect; Customizing entry not unique typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly in the Vendor Managed Inventory (VMI) module. This error indicates that the system has encountered a situation where the input data provided does not match a unique customizing entry in the system, leading to ambiguity.
  Causes:
  
  Duplicate Entries: There may be multiple customizing entries in the system that match the input data, causing the system to be unable to determine which entry to use.
  Incorrect Configuration: The configuration settings for VMI may not be set up correctly, leading to conflicts or overlaps in the data.
  Missing or Incorrect Master Data: The master data (such as vendor, material, or location) may be incomplete or incorrectly maintained, leading to issues in identifying the correct customizing entry.
  Data Inconsistency: There may be inconsistencies in the data being processed, such as incorrect keys or