https://userapps.support.sap.com/sap/support/knowledge/en/3355972
3355972 - BYD2305 Demand Plan - Limit in upload file ( 1200 line items)
Demand Planning - Uploading Key Figures You found that there is a limit to upload only 1200 line items for a demand plan. Now you would like SAP to increase...
demand planupload filelimit