You create production order with app Create Production Order. It's not clear what the valuation variant is used for plan cost and actual cost.
SAP S/4HANA Cloud
Reproducing the Issue
Create production order with app Create Production Order. Check the plan costs and actual costs for the order after costing is done.
You could check in production order app in Control tab, there are 2 parameters: PlnCstgVar and ActCstgVar. They determine how the costs will be calculated.
But it's costing variant, not valuation variant. Since there is no existing app which can check the configuration for production costing variant, you don't know how the costing variant link with valuation variant.
Please check below costing variant <-> valuation variant pairing:
PSRM -> 0RM
PYG1 -> 0Y6
PYG2 -> 0Y7
PYR1 -> YR6
PYR2 -> YR7
Then you could check the valuation variant configuration detail via SSCUI 102608 Define Valuation Variants per Plant.
PlnCstgVar, ActCstgVar, plan costing variant, actual costing variant, PYR1, PYR2, product cost collector, valuation variant, PYG1, PYG2, PSRM. , KBA , CO-PC-OBJ , Cost Object Controlling , CO-PC-PCP , Product Cost Planning , How To