STO quantity difference between GI & GR

Hello gurus,

We have the following two scenarios:

1> Delivering Plant PGI 100pcs

2> Receiving Plant PGR 80pcs only (as received actual)

3> MB5T - shows 20pcs still in transit

1>

**20pcs were lost by the forwarder during transit. How then can we remove the 20pcs in MB5T?

2>

**20pcs were confirmed by the delivering plant that these were left in their plant. How can we remove the 20pcs in transit?

best regards,