Tax Code already for intra-state, still error to choose intra-state

Hello Experts,

I use SAP B1 version (10.00.180) FP 2111 SAP HANA.

1. I have created a new tax type.

2. I have created a tax formula which i have copied from the another tax formula which already existing, and changed it to from "round-up" to "round-down" formula.

3. I have created new tax type combination for cgst & sgst.

4. I have created a new tax code for the same.

But when i going to add GRPO error comes "for intra-state transection you must choose cgst + sgst".

But the tax code is already defined for cgst & sgst only. And the transaction is also for intra-state.

How to solve this?