Effective date violation (screen message): 
The business date is not within the effective date range of the selected allocation.

Non-numeric register (in AMTRCE report): 
A command references a register which contains non-numeric data.

Not defined (in AMTRCE report): 
A command references a register which contains no information.

Rate does not = Amount / Units (in AMTRCE report): 
Rate x (times) Units is not equal to Amount.  Information message only, all items will post to the ledgers.
(in AMTRCE report): 

Inactive account (in AMPOST and AMERROR reports): 
An inactive account was to be posted to.

Not in system (in AMPOST and AMERROR reports): 
An account that does not exist was to be posted to.

Rate does not = Amount / Units (in AMPOST and AMERROR reports): 
Rate x (times) Units is not equal to Amount.  Information message only, all items will post to the ledgers.

Transaction does not balance (in AMPOST and AMERROR reports): 
The transaction does not balance as to fund and/or double-sided accounts.  This will be followed by ID type (?) (balance) (account type F/D description) for those General ledger ID types whose balance is not zero.