You can change the partner in a GRN while it is in Draft status. After creating and saving the GRN as a draft, open the same GRN and click on the pencil icon to modify the partner. You can replace the existing partner with a new one before finalising. Once updated and saved, the GRN will reflect the newly selected partner.
Many time only after entering a couple items the user realises that the partner was a different one. This option will become handy in such scenarios
