Suppress standard Tax procedure for tax returned from external tax server

Question

Hi All,
We are facing an issue after implementing the external tax engine called CTE.
In some scenarios, when CTE is returning reverse charge lines, we are passing the same lines into the BAPI for posting.
Ex: We can clearly see that two reverse charge lines (input and output taxes) being returned by CTE.
Now, we pass the tax lines into the BAPI for posting. We get the following:
We can clearly see that apart from the tax lines which have been sent by CTE, we also get two additional lines having +-1000 as amount.
Now, we tried to post the document without passing the tax lines into BAPI and we get,
The additional lines are still there. Thus, I came to the conclusion that these tax lines are being added by SAP standard tax procedure as tax calculation.
Now, since we have already calculated tax using CTE (for some cases specially reverse charge scenario), we do not need SAP standard tax procedure to calculate tax again and add new tax lines to the posted document.
Thus, our main objective is to suppress the standard tax procedure ( like TAXAT, TAXGB, etc) or few of the cases.
We tried to analyze from our end but still could not reach a solution for the same.
Is there any way or any indicator which you can use to suppress the standard tax procedure in case we are using CTE to calculate tax?
Please help.
Regards,
Saurabh.

Answer 1

Hi
You can create and use a new tax code which is applicable only for Delivery charge cases.
Use a new pricing condition type for this Tax .and condition records with access sequence and tax code can be amintianed only for this condition type.
You will have to modify pricing procedure for the same.
Depending on condition records and document inputs the tax values for delivery will get triggered.
You can also put an order reason in Accounting determination access sequence through which on This special sales ,
account determiantion can be changed.
hope this helps
Regards
Mandar