Stock Transfer - Condition Code Issue

Hi Expert,Does anyone know the reason for receiving the following error while transferring stock from one condition code to another? (Using Import perform_stock_adjustment)?“Import Row	Error Details	adjustment_reason	part_id	quantity	place_id_from	location_from	bin_id_from	place_id_to	location_to	bin_id_to	orig_reference_id	pt_comment	request_unit_id	serial_ids	template_title	lot_id	condition_code_from	condition_code_to	serial_id	1	This combination of Bin ID, Condition Code, Location, Part ID, Place ID, Usable already exists:”