How to display f4 help for a field based on value of another field

Hello All,
I have 4 fields : Sales Org : VBAK-VKORG, Distrib Channel : RV50A-VTWEG, Div : RV50A-SPART, Sold-to-party : KUAGV-KUNNR.
The second field depends on the first one, the third on the second one and the fourth on the first field.
However, when each of the second third and fourth fields' f4 help is displayed, the values are independent of the previous fields. How do I set the f4 help to display values based on the respective fields?
Regards,
Mithun

Please be sure that you are searching the forums before posting. This exact same question was asked just yesterday:
F4 help to input field
In particular study the section and the linked help document for ddic search helps export/importing parameters and the requirements for DDic Structure/table usage for the parameter mapping.

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