Tax id rule setting in SAP (Taiwan)

[SM1970]

Dear Friends,

The user who belongs to Taiwan has the following requirment in ECC 6.0

There should be a tax id rule setting in SAP  which also needs claculation in SAP.

Please help us to find the setting in SAP and update it.

All the help will be greatly appreciated.

Regards

Sridhar

[Lakshmipathi]

Please share what the Business requirement is and what do you mean by tax id rule? How currently, it is functioning?

[Divyesh_Mistry · Accepted solution]

Hello @SM1970 ,

In Taiwan, companies are legally required to validate Tax ID (VAT Registration Number) structure. I guess your are referring to same only. If that's the case then, enable tax number categories. For BP or customer/vendor tax ID setup, Go to OY17: Define tax number categories. Example: TW – VAT Reg. No. Now, go to OY18: Assign tax number categories to country (TW).

Secondly, maintain validation rule using user exit or BADI (BADI_FITV_SUBSTITUTE)
SAP does not natively validate Taiwan VAT ID logic (e.g., checksum). You can implement a custom validation via: User Exit EXIT_SAPMF02K_001 (Vendor Master validation). BADI or implicit enhancement in standard function.

If you find my response helpful, kindly accept the answer and award a Kudos. This motivates me to serve you better.
Appreciate your feedback.
Thanks,
Divyesh