Dear Jose Antonio,
You can restrict your user at various level in such situation. Some of the following object will help you check.
C_AFKO_AWA -Restrict user at plant ,Order type level
C_AFKO_AWK - CIM: Plant for order type of order
M_MSEG_LGO- Restrict user at storage location level
Check it from your side & revert if any.
Regards,
Shyam