1. Assign a subscription to a contract
If a contract is created or READY after the subscription is provisioned, you can still assign the subscription to the contract.
Instruction:
Go to Customer app > Choose an account > Subscription > Add to a contract
Click Add
Choose a Contract and Change
Please make sure the subscription and its items are included in the contract, otherwise, it is blocked off renewing.
2. Switch subscription from this contract to another
In case you want to re-allocate a subscription to another contract, just follow the same steps as above.