Based on the Account type of the base account selected and the prefix selected, the full account it would create does not fit with the Balance Sheet Level.

• If the base account has a balance sheet account type (Asset, Liability, Equity, Retained Earnings) and the prefix selected is a profit and loss (P&L) level prefix, the account will not be created.
• If the base account has a P&L account type (Income, Cost, Expense, Other Income) and the prefix selected is a balance sheet level prefix, the account will not be created.

Refer to article 18816 "How does General Ledger generate accounts?" for more information.

• Confirm that the base account selected has the correct Account type assigned in Setup, Prefix/Base, Base Accounts.
• Confirm you are selecting the correct prefix when generating accounts.
• Confirm the balance sheet level assignment is correct (Reports, Lists, Prefix A).
  • If you determine that the balance sheet level is set incorrectly, refer to article 25183 "Can I change the balance sheet or fiscal entity level in General Ledger?"