PO getting reschedule since the production is running behind the schedule(MPS)

Hi Team,

We are using MPS as our production schedule but due to some constraints production is running behind schedule. Due to this, the planning system suggest to change the scheduled completion date of the Work order and this in turn causes the purchase order to reschedule which are actually pegged to this.

Every time the plan runs, we are seeing very large amount of exception messages where the system suggest the PO/work order to reschedule.

Need an option/suggestion to restrict this PO reschedule. Please check below step to understand the issue.

Regards,

Siva