Hi,
In the inter-site flow, when an external customer order is in the release state and a particular order line is canceled along with a cancellation reason, the cancellation and cancellation reason will be updated in the internal purchase order of the demand site. However, only the cancellation reason will not be updated in the internal customer order at the supply site.
There is another community post addressing the same issue below. I am raising this community post to consider this improvement for the future, as multiple customers have expressed the need for it.
“In interstice flow not propagating the cancellation reason to the supply site | IFS Community’
Best regards,
Vihan