How To Fix MQ866 - Any existing user-defined entries have been deleted

MQ866 - Overview

• Message type: E = Error

• Message class: MQ - Messages for Euro Changeover Package

• Message number: 866

• Message text: Any existing user-defined entries have been deleted

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MQ866 - Any existing user-defined entries have been deleted ?

  The SAP error message MQ866, which states "Any existing user-defined entries have been deleted," typically occurs in the context of managing user-defined entries in SAP, particularly when dealing with customizing or configuration settings. This error can arise in various modules, such as Material Management (MM), Sales and Distribution (SD), or others where user-defined entries are relevant.
  
  Cause:
  The error message MQ866 is generally triggered when:
  
  Data Deletion: User-defined entries that were previously created have been deleted, either manually or through a system process.
  Transport Requests: If you are transporting changes from one system to another (e.g., from development to production), and the transport does not include the user-defined entries, they may be removed in the target system.
  Configuration Changes: Changes in configuration settings or updates to the system can lead to the deletion of user-defined entries.
  Authorization Issues: Sometimes, users may not have the necessary authorizations to view or manage user-defined entries, leading to confusion about