# Modify a Capacity Reservation Fleet You can modify the total target capacity and date of a Capacity Reservation Fleet at any time. When you modify the total target capacity of a Capacity Reservation Fleet, the Fleet automatically creates new Capacity Reservations, or modifies or cancels existing Capacity Reservations in the Fleet to meet the new total target capacity. When you modify the end date for the Fleet, the end dates for all of the individual Capacity Reservations are updated accordingly. **Considerations** + After you modify a Fleet, its status transitions to `modifying`. You can't attempt additional modifications to a Fleet while it is in the `modifying` state. + You can't modify the tenancy, Availability Zone, instance types, instance platforms, priorities, or weights used by a Capacity Reservation Fleet. If you need to change any of these parameters, you might need to cancel the existing Fleet and create a new one with the required parameters. + You can't specify `--end-date` and `--remove-end-date` in the same command. ------ #### [ AWS CLI ] **To modify a Capacity Reservation Fleet** Use the [modify-capacity-reservation-fleet](https://docs.aws.amazon.com/cli/latest/reference/ec2/modify-capacity-reservation-fleet.html) command. **Example 1: Modify total target capacity** ``` aws ec2 modify-capacity-reservation-fleet \ --capacity-reservation-fleet-id crf-01234567890abcedf \ --total-target-capacity 160 ``` **Example 2: Modify end date** ``` aws ec2 modify-capacity-reservation-fleet \ --capacity-reservation-fleet-id crf-01234567890abcedf \ --end-date 2021-07-04T23:59:59.000Z ``` **Example 3: Remove end date** ``` aws ec2 modify-capacity-reservation-fleet \ --capacity-reservation-fleet-id crf-01234567890abcedf \ --remove-end-date ``` ------ #### [ PowerShell ] **To modify a Capacity Reservation Fleet** Use the [Edit-EC2CapacityReservationFleet](https://docs.aws.amazon.com/powershell/latest/reference/items/Edit-EC2CapacityReservationFleet.html) cmdlet. **Example 1: Modify total target capacity** ``` Edit-EC2CapacityReservationFleet ` -CapacityReservationFleetId crf-01234567890abcedf ` -TotalTargetCapacity 160 ``` **Example 2: Modify end date** ``` Edit-EC2CapacityReservationFleet ` -CapacityReservationFleetId crf-01234567890abcedf ` -EndDate 2021-07-04T23:59:59.000Z ``` **Example 3: Remove end date** ``` Edit-EC2CapacityReservationFleet ` -CapacityReservationFleetId crf-01234567890abcedf ` -RemoveEndDate ``` ------