If you want to create a GRN without a Purchase Order, please follow the below-mentioned procedure.

STEP 1: Navigate to Inventory > purchase planning 

Click on Auto GRN

STEP 2: Select a vendor from the dropdown.

If the vendor is not registered, either you can go to the vendor master to create a vendor OR you can directly click on the Unregistered vendor checkbox. Add all the vendor details.

STEP 3: Add SKU details

Enter the SKU in the text box. The system will reflect the SKU names that are already in your product master.

If it is a new product, you can create the product by clicking on the green plus (+) icon

NOTE: The green button to add new products is only available in the primary warehouse location. The child warehouse locations will not be able to create products on this screen.

Enter all the details and click on "Yes".

STEP 4: Submit 

You can add more rows by clicking on "Add row"-

After you have entered all the details, click on Submit. 

You have now completed the process of auto GRN.

The above process was for individual upload. You can follow the below process to record GRN without PO (in bulk):

Step 1: In the toggle menu, navigate to “Inventory>>Purchase Planning”

First select a vendor from the drop-down menu. 

Then click on the “Save Template” button to download the GRN Sheet. Fill in the details in the excel file, and save it. Then click on the “Choose File” button, and select this file from your system and upload it by clicking on the “Upload” button.