You are trying to create or modify plan category in allocation cycle with Manage Allocations App.
You meet error MANAGE_ALLOC016 - Invalid values for field 'xxxx'.
SAP S/4HANA Cloud
Reproducing the Issue
Maintain allocation cycle with Manage Allocations App.
This is system bug.
The issue will be fixed in CE2108.
For workaround, please use '0000000001' instead of '1' to insert the plan category field.
MANAGE_ALLOC/016, MANAGE_ALLOC 016, invalid, manage allocations, cycle, plan category , KBA , CO-OM , Overhead Cost Controlling , Problem