Message type: E = Error
Message class:  FINCS_MD_FSITEM - Consolidation Financial Statement Item Master Data 
Message number: 000
Message text: You are not authorized to maintain the financial statement item.
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 FINCS_MD_FSITEM000 indicates that a user is not authorized to maintain a financial statement item. This error typically arises in the context of financial reporting and configuration within the SAP system, particularly when dealing with financial statement versions or items.
Cause: Authorization Issues: The primary cause of this error is that the user does not have the necessary authorizations assigned to their user profile to maintain financial statement items. Role Configuration: The roles assigned to the user may not include the necessary permissions for the specific transaction or activity they are trying to perform. Transaction Code Restrictions: The user may be trying to access a transaction code that is restricted based on their user role.
Solution: Check User Authorizations: Use transaction code SU53 immediately after encountering the error to check the authorization check that failed. This will provide insight into which specific authorization object is missing. Review the user’s roles and authorizations in transaction code
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FINCS_MD_CONSUNIT312 &1 special versions for cons. unit attributes were created in client &2.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FINCS_MD_CONSUNIT311 Client &1 has already been converted.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FINCS_MD_FSITEM001 Consolidation chart of accounts &1 does not exist.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FINCS_MD_FSITEM002 Breakdown category &1 does not exist in consolidation COA &2.
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.