'INV01 Inventory Ordering'.Safety Stock Exception Count should have dimensionality as "P3 SKU", with summary method applied as "Sum" - this allows data points at the P1 Product Family hierarchy level to exist.
The aggregation being used ([SUM: 'SYS08 SKU Details'.Country Made In]) handles the aggregation for G2 Country, whereas the summary method in "Safety Stock Exception Count" handles the aggregation for P1 Product Family.
Can you confirm that the line item 'INV02 Country Summary'.Safety Stock Flag Count has dimensionality as "G2 Country, P1 Product Family"?
Can you show the module blueprint for INV02? The line item Safety Stock Flag Account has an icon indicating that it is a subsidiary view, and has different dimensions to the module itself. This might be the problem.
The module should have dimensionality of:
* G2 Country
* P1 Product Family
* Time (Weekly, Model Calendar)
The line item should have the same dimensionality - make sure the Applies To field is "-", and it will inherit the module dimensionality. Also make sure the time settings for the line item are the same.