HU status not changing after GR

Hi All,

For a stock transfer order we create outbound delivery and create HU and then do PGI and at the receiving site we do GR via HU in MIGO transaction.

however the status of the HU changes after it is created and after it is PGI ,,, but after doin GR the status does not change.

Please help me with this ,,,

Regards,

Samuel