Classification key WPE not defined for adjustment to net income

What causes this issue?

The assignment classification key WPE for the currency translation
item, used in version &V1& for the
<DS:GLOS.adjustment_to_net_income>adjustment to net income</>, is
missing.
This setting is needed in <DS:GLOS.currency_translation>currency
translation</> for posting the balance sheet
<DS:GLOS.currency_translation_difference>currency translation
difference</> affecting net income.

System Response

Processing terminated

How to fix this error?

Define this classification key in the Implementation Guide in the
chapter concerning <DS:GLOS.selected_item>selected items</> and assign
a statistical item outside of the balance sheet and income statement.
IF &DEVICE& = 'SCREEN'
<DS:TRAN.OCBF>Proceed</>
ENDIF

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