Tax entered incorrect (code XX, amount XXXX), correct XXXX

Hi,

I have issues posting invoice using BAPI : BAPI_INCOMINGINVOICE_CREATE1

In Header data, i am providing Gross AMount and Itemdata Item amount and in Tax data - Taxamount

I am getting these errors :

1) Tax entered incorrect (code XX, amount XXXX), correct XXXX

   - To fix this I have added Caltax indicator as X, even then it will not post

2) It says to select either Header data - Calc_Ind = X or enter Tax amount in TAXdata

   - I am doing both, still invoice with tax amount isn ot getting posted.

Any suggestions will be appreciated!

Best Regards,
KC