Symptom
In "Manage Project Demand" app, error "WBS element, cost center, and activity type already assigned to demand" occurs upon the creation of a second demand with the same cost center and activity type for a single WBS element.
Environment
SAP S/4HANA Cloud Public Edition
Cause
Currently it is not possible to create multiple demands with the same combination of WBS element, cost center, and activity type in "Manage Project Demand" app.
Resolution
It is possible to assign multiple resources to the same demand request. If multiple demands are required, create sub WBS elements and separate demands for each WBS element using the same activity type.
Keywords
WBS, cost center, activity type, multiple, demands, error, project demand, manage project demand, enterprise project, wbs element, external staffing, PS_DMND218 , KBA , PPM-SCL-DMN , Project Demand (Public Cloud) , Problem
SAP Knowledge Base Article - Public