fix: Validation for Suppliers in SO to PO (#19686)
fix: Validation for Suppliers in SO to PO (#19686)

- Check if there is a Supplier against atleast one item in Sales Order
- Validation message earlier was vague
gsnbng/erpnext,gsnbng/erpnext,gsnbng/erpnext,gsnbng/erpnext