Switzerland VAT number in FPP2 and FD03

Hello All,

Our client wants to enter Swiss VAT numbers in Fpp2 (BP), which inturn reflects in FD03(Customer).

I have followed the below steps for enabling it

1. Created a tax type 'CH1' using BUPA_TAXNUMTYPE
2. Maintained data in V_TFKTAXNUMTYPE.
3. Maintained the checking rules via SPRO

Now client is able to enter the Swiss vat number.

But the problem is the VAT number entered in 'Identification' tab of FPP2 appears in field 'Tax Number 1(KNA1-STCD1)' (Control Tab) of FD03.

The VAT number should appear in the VAT registration field (KNA1-STCEG) of FD03. For other countries it works fine, I have also searched through SAP notes but was not able to find anything for this scenario.

Can you please help me resolve this issue?

Thanks,

Sharin