SAP Message WRF_APC237 - Planning not allowed for hierarchy &1, node &2 (hierarchy level)

Diagnosis According to the settings for Operational Assortment Planning andControl, planning is only allowed at hierarchy level &V4&. However, nodeV2 in hierarchy v1 is at hierarchy level v3. Procedure Select a different hierarchy node, a different assortment type, orverify the settings: Article Hierarchy Level OAPC