Line item flag changed for dimension &1

What causes this issue?

The line item setting for dimension &V1& has been changed, but InfoCube
&V2& contains data<(>,<)> and dimension &V1& contains more than one
characteristic.

System Response

The check of InfoCube &V2& returned an error. Since dimension &V1&
contains more than one characteristic, the line item setting for
dimension &V1& cannot be reset automatically.

How to fix this error?

Change the line item setting for dimension &V1& back to its original
setting or remove all data from InfoCube &V2& before activating.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.