There is an issue where the field HKTID (Bank Account ID) is missing from transactions FB01, FB02, FB03, FB60 or FB70.
For example (please refer to below screenshot), the field BSEG-HKTID is missing from transaction FB70.
The issue is due to missing RE-FX component (this component can be viewed in SPRO).
Please refer to SAP note 953374 which mentioned that for the field HKTID to be visible:
- the component RE-FX must be activated and
- the field status control displays the BSEG-HBKID short key field (short key for a house bank).
Hope this helps.