When using this app for a stock entry posting, you cannot enter a value for the quantity to be entered (for example, from a legacy system). The goods receipt is valuated with the valuation price of the material from the material master. However, if you want to enter an amount, you must use the Post Goods Movement app (External Amount in Local Currency field in the item details on the Quantity tab page).
Use the Post Goods Receipt Without Reference App
The Post Goods Receipt without Reference app allows you to post a goods receipt without a purchasing document.