How To Fix CM_SUB_BAPI001 - In compatibility mode no long material numbers are allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_SUB_BAPI - BAPI Substance

• Message number: 001

• Message text: In compatibility mode no long material numbers are 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.

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 CM_SUB_BAPI001 - In compatibility mode no long material numbers are allowed ?

  The SAP error message CM_SUB_BAPI001 indicates that you are trying to use long material numbers in a system that is operating in compatibility mode, which does not support long material numbers. This error typically occurs when you are working with BAPIs (Business Application Programming Interfaces) or other functions that involve material master data.
  
  Cause:
  
  Compatibility Mode: The system is set to compatibility mode, which means it is configured to work with older versions of SAP that do not support long material numbers (more than 18 characters).
  Long Material Number Usage: You are attempting to use a material number that exceeds the 18-character limit allowed in compatibility mode.
  
  
  Solution:
  
  
  Switch to Extended Material Number: If your business processes require the use of long material numbers, you may need to switch your system out of compatibility mode. This typically involves:
  
  Changing the system settings to allow for extended material numbers.
  Ensuring that all relevant configurations and master data are