Sales invoice price not entering automatic plz help me how to solved this problem
You need to provide much more information. The price of what? Why do you think it should enter automatically? Are you adding something on an invoice for which you defined a price elsewhere in Manager?
if you have set the sales price of an inventory or non inventory item on their respective tabs, these price will appear automatically when those items are selected in a sales invoice.
the price will not change automatically depending on your purchase price. for this you will have to update the selling price for the item manually first. if there are many items you can consider doing a batch update.