Why is the RCM tax not getting posted automatically in the sales invoice when I select RCM while creating the invoice in BUSY?

If you are not getting posted sale invoice under RCM,you have to create sale type for rcm in sale voucher and can follow these steps to record rcm sale voucher
 If are not able to record sale transaction under reverse charge,check in sale type if reverse sale type is created and to record sale inovice under rcm,follow these steps 
 Step 1 Open your company 
 Step 2 Go to transactions 
 Step 3 Then select sale voucher and proceed to add 
 Step 4 Now select series,date voucher number ect. 
 Step 5 While adding sale voucher,in sale type you have to select sale type as RCM or you can create by clicking F3 in sale type and then add name as rcm and select specify sales account and then taxation type as reverse charge and region local or central and save the sale type 
 Step 6 Now after selecting sale type,proceed to add party,itme details and other details and save the sale voucher 
 Step 7 After saving voucher,in sales invoice print also you can check,it will show reverse charge in header as yes 
 Note:When RCM in sale invoice is used,it doesnot calculate tax and is only to show sales invoice as rcm invoice as shown in sale invoice print also