How To Fix C5899 - Message numbers 900 to 999 are reserved for customers !!!

C5899 - Overview

• Message type: E = Error

• Message class: C5 - Master Recipe

• Message number: 899

• Message text: Message numbers 900 to 999 are reserved for customers !!!

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message C5899 - Message numbers 900 to 999 are reserved for customers !!! ?

  The SAP error message C5899, which states "Message numbers 900 to 999 are reserved for customers," typically occurs when a custom message number is being used in the SAP system that falls within the range reserved for customer-defined messages. Here’s a breakdown of the cause, solution, and related information for this error:
  
  Cause:
  
  Message Number Conflict: In SAP, message numbers 900 to 999 are reserved for customer-specific messages. If a developer or user attempts to create or reference a message in this range without proper configuration, the system will throw this error.
  Custom Development: This error often arises during custom development or when using custom function modules, reports, or enhancements that reference these message numbers incorrectly.
  
  
  Solution:
  
  Use Valid Message Numbers: Ensure that any custom messages you create are assigned message numbers outside the range of 900 to 999. You can use numbers from 000 to 899 or from 1000 onwards.
  Check Message Class: If you