How To Fix CN199 - The relationship type cannot be changed

CN199 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 199

• Message text: The relationship type cannot be changed

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 CN199 - The relationship type cannot be changed ?

  The SAP error message CN199, which states "The relationship type cannot be changed," typically occurs in the context of project management or network planning within SAP. This error indicates that there is an attempt to modify the relationship type of a network activity or project element that is not allowed due to certain constraints or settings in the system.
  Causes:
  
  Locked Relationships: The relationship type may be locked due to the status of the project or network. For example, if the project is in a certain status (like "Released"), changes to relationships may be restricted.
  Incorrect Configuration: The system configuration may not allow changes to certain relationship types based on the project type or settings.
  Dependencies: There may be dependencies or constraints that prevent changing the relationship type. For instance, if there are other activities that depend on the current relationship, changing it could lead to inconsistencies.
  Authorization Issues: The user may not have the