Message type: E = Error
Message class:  CMMFSA_SUB_ACCOUNT - Commodity Derivative Order & Trade Execution : Sub Account 
Message number: 020
Message text: Company code &1 is not valid
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.
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.
The SAP error message CMMFSA_SUB_ACCOUNT020 indicates that the company code specified in the transaction or process is not valid. This error typically arises in the context of financial transactions, particularly when dealing with sub-accounts or financial statements.
Cause: Invalid Company Code: The company code entered does not exist in the system or is not properly configured. Inactive Company Code: The company code may exist but is not active or has been marked for deletion.
Configuration Issues: There may be issues with the configuration of the company code in the financial settings. Authorization Issues: The user may not have the necessary authorizations to access the specified company code.
Solution: Verify Company Code: Check the company code entered in the transaction. Ensure that it is correct and exists in the system. You can do this by navigating to the transaction code OBY6 (for company code settings) to see if the company code is listed. Check Company Code Status: Ensure that the company code
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CMMFSA_SUB_ACCOUNT019 Plant &1 is not valid
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CMMFSA_SUB_ACCOUNT018 Subaccount ID & is not active
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CMMFSA_SUB_ACCOUNT021 Commodity &1 is not valid
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CMMFSA_SUB_ACCOUNT022 Enter Derivative Contract Specification (DCS)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.