How to remove Excise amount which is added to the amount to customer field in Sales Invoice Line

Dear All,

I want to know how can I prevent addition of the excise amount in the Amount To Customer field in the sales invoice line table. I have an idea as to which codeunit is responsible to add the amount to the amount field in G/L Entry table but I am not able to find the cal code which inserts amount in the Sales Invoice Line table. Can anyone help me out on this.

Thanks in advance

Naval J Kosambe