SAP Message UCF6678 - A breakdown category suitable for equity item &1 does not exist

Diagnosis
You want to generate a new statistical equity item for equity item &V1&
.
This is not possible because the system cannot find a suitablebreakdown category for thestatistical equity item to be generated.
The new breakdown category must be structured like the breakdowncategory of equity item &V1&, but must also have a breakdown by partnerunit.

Procedure
Create a suitable breakdown category.
Run the generation of statistical equity item again.