'One-sided elimination' indicator not consistent

What causes this issue?

More than one rule for the intercompany eliminations
has been assigned to a single
document type. The indicator 'One-sided elimination' is not consistent
among these rules.

System Response

The system will use the setting from the first rule.

How to fix this error?

Make the indicator settings consistent among all of the rules
that are assigned to a particular document type.
or
Use more document types if different settings among the rules are
required.
Consistent indicator settings are necessary among all rules
assigned to a particular document type.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Then, run the program once per document type.
IF &DEVICE& = 'SCREEN'
<DS:TRAN.OC27>Execute the function</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.