Message type: E = Error
Message class:  FOT_B2A - Messages Administration Report Electronic Data Transmission 
Message number: 420
Message text: A quarter must be delimited exactly for company code &
You have chosen the update of data for the electronic return for tax on
sales/purchases. In this case, the delimited period must match the
legally required settlement period exactly. This also applies to
settlement according to fiscal periods.
Company code &V1& settles according to calendar quarters and the fiscal
periods specified do not correspond exactly to a quarter.
The system cannot execute the taxes on sales/purchases settlement within
electronic communication with authorities.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FOT_B2A420 indicates that there is an issue with the financial data related to a specific company code. The message states that "A quarter must be delimited exactly for company code &," which typically means that the system requires a clear definition of the financial quarter for the specified company code, but it is not able to find it.
Cause: Missing Quarter Definition: The quarter for the specified company code may not be defined in the system. Incorrect Configuration: There may be an issue with the configuration settings related to fiscal periods or financial year variants. Data Entry Errors: There could be errors in the data entry that prevent the system from recognizing the quarter. Inconsistent Periods: The periods defined in the fiscal year variant may not align with the expected quarters.
Solution: Check Fiscal Year Variant: Go to the configuration settings for the fiscal year variant in SAP (Transaction code: OB29). Ensure that the fiscal
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FOT_B2A419 Posting period must be delimited exactly for company code &
What causes this issue?  You have chosen the update of data for the electronic return for tax on sales/purchases. In this case, the delimited period m...
FOT_B2A418 Delimited period does not end on last day of year
What causes this issue?  You have chosen the update of data for the electronic return for tax on sales/purchases. In this case, the delimited period m...
FOT_B2A421 A fiscal year must be delimited exactly for company code &
What causes this issue?  You have chosen the update of data for the electronic return for tax on sales/purchases. In this case, the delimited period m...
FOT_B2A422 Reporting period entered is not consistent with selection
What causes this issue?  You have chosen the update of data for the electronic return for tax on sales/purchases. The settlement of the reporting peri...
Click on this link to search all SAP messages.