3463433 - Search with reference document field in Fiori app manage sales orders(F1873) not return expected result

• In document flow, it shows the preceding document for a sales order(see following screenshot 'Pic 1'). However, reference document field is space in Fiori app manage sales orders(see following screenshot 'Pic 2'):
  Pic 1:
  
  Pic 2:
  
• Search with the reference document number in 'manage sales orders', the sales order is not returned
  
  
  

*Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.

• Sales and Distribution (SD)
• SAP S/4HANA

KBA , SD-SLS , Sales , Problem