Message type: E = Error
Message class:  IDCNSAU -  
Message number: 273
Message text: G/L account & is not refered in Form Structure Customizing &
G/L account is not referred in the Form Structure customizing which
might signify incorrect customizing of the statement.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
In the <DS:SIMG.SIMG_CFMENUORFBOB58>Define Financial Statement Versions
</> customizing there are different items of the Financial Statement
Version (<DS:SIMG.VC_IDCN_FSC>Define Form Structure for Financial
Statement</>) used to define set of G/L accounts whose balances are
included in certain statement.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message IDCNSAU273 indicates that a General Ledger (G/L) account is not referenced in the Form Structure Customizing. This typically occurs when you are trying to generate or process a document (like an invoice or a financial statement) that requires a specific G/L account, but that account has not been properly configured in the system.
Cause: Missing Configuration: The G/L account in question has not been assigned to the relevant form structure in the customizing settings. Incorrect Form Structure: The form structure being used does not include the G/L account, which is necessary for the document processing. Data Entry Error: There may be a typo or incorrect entry in the G/L account number.
Solution: Check Form Structure Customizing: Go to the SAP Customizing Implementation Guide (IMG). Navigate to Financial Accounting (New) > General Ledger Accounting > Business Transactions > Document Entry > Document Splitting > Define Form Structures. Ensure that the G/L account is included in the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
IDCNSAU272 FSV item & "&" is not referred in Form Structure Customizing &
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
IDCNSAU271 Form Structure Customizing & check
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
IDCNSAU274 Form Structure Customizing check: internal error. Contact administrator
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
IDCNSAU275 Profit and Loss account & is used to calculate Balance Sheet
What causes this issue?  The application has identified using "Profit & Loss" account within "Balance Sheet" form which might ...
Click on this link to search all SAP messages.