Message type: E = Error
Message class:  FGV - Fiscal year variants 
Message number: 582
Message text: More than 16 periods can only be used in the Extended General Ledger
The defined fiscal year variant has &V1& posting periods and &V2&
special periods, i.e. a total of &V3& periods.
The financial accounting transaction figures only allow 16 periods. The
extended General Ledger allows up to 365 periods to be defined.
The System indicates that you cannot use this fiscal year variant for
the Standard ledger 00, which contains the transaction figures.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FGV582 indicates that you are trying to use more than 16 posting periods in a financial transaction, which is not allowed in the standard General Ledger (G/L) configuration. This limitation arises because the standard G/L only supports a maximum of 16 periods for financial reporting. If you need to work with more than 16 periods, you must use the Extended General Ledger (EGL) functionality.
Cause: The error occurs when: You attempt to post transactions that require more than 16 periods in a standard G/L setup. Your company code is configured to use the standard G/L, which has a limitation on the number of periods.
Solution: To resolve this error, you have two main options: Switch to Extended General Ledger (EGL): If your business processes require more than 16 periods, consider enabling the Extended General Ledger functionality. This allows for more flexible period management and can accommodate additional periods. To enable EGL, you may need to
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FGV581 Shortened fiscal year can have & periods at the most
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FGV575 No period 0001 is defined in calendar year &
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FGV600 Periods cannot be maintd for calendar-dependent financial year variants
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FGV601 Period texts only possible for year-independent variants
What causes this issue?  You cannot enter differing texts for the periods per calendar year for year-dependent fiscal year variants.System Response  T...
Click on this link to search all SAP messages.