Where the Customer is migrating to BT Business Complete from another BT calls and lines package the migration rules applicable to that calls and lines package will apply.

Where within the Minimum Period, the Customer is migrating from a BT Business Complete Contract to another BT Business Complete Contract, the date of migration will be the Spend Measurement Date and the Annual Charge will apply unless:

• The Customer's Contributory Spend under the original BT Business Complete Contract is on track to achieve the Committed Spend on a pro-rata basis; and
• The Customer commits to CommitedCommitted Spend equal to the current sum of their rental products and an equal or longer Minimum Period under the new BT Business Complete Contract.

Where within the Minimum Period, the Customer is migrating from a BT Business Complete Contract to a BT Business Flex contract, the date of migration will be the Spend Measurement Date and the Annual Charge will apply unless:

• The Customer's Contributory Spend under the original BT Business Complete Contract is 80% of the Committed Spend on a pro-rata basis;
• The Customer commits to an equal or higher Committed Spend and Minimum Period under the new BT Business Flex contract; and
• The Customer includes the Lines in the BT Business Flex Inventory that were included in the BT Business Complete Inventory on the date of termination of the BT Business Complete Contract.