Different company codes at MaintPlant & and MaintPlanPlant &

What causes this issue?

<GL:maintenance_plant>Maintenance plant</> &V1& and
<GL:planning_plant>planning plant</> &V2& refer to different
<GL:company_code>company codes</>.

System Response

The combination is allowed, but the system will have to generate
periodic clearing entries between the company codes for cost allocation
processing between account assignment objects belonging to
different company codes.

How to fix this error?

Check your entries.

Error message extract from SAP system. Copyright SAP SE.