In our scenario BOM variant are there for country specific. so my client requirement is once they freeze Bill of Material (BOM) i.e. particular date for single country variant then no changes can be made for this country specific variant up to one month or some period.
Second requirement is if they want to do some changes in same variant after some days then this change should not be reflected now this chnage should reflected after one month or after some period i.e. from BOM Freezing date. so please tell me any standard functionality is there or if not possible then how we do this development.