Hi Delhi,
i also had the problem with the Warehouse Activity Status 'partially completed'.
In my case i had in the transaction SMQ2 (ERP System) for the reference document 'inbound delivery standard number range18...' the following entries: Enter the shelf life expiration date.
So check if you use the batch management or shelf life data for certain products. If so, then this data must be maintained during the processing of the goods receipt.
BR
Johann