The Channel Incentives Platform (CHIP) provides access to incentives data for specific Microsoft Channel Incentives programs, and shows updated earning details for selling Microsoft products.
When first enrolled, Microsoft sends a Welcome e-mail which explains the CHIP login process. A Microsoft Account (formerly Windows Live ID) is required for CHIP access.
Following the welcome e-mail, you are sent a Unique Invitation Code, via an Invitation Code Email. You need to use both to gain access to CHIP.
Note that there is no requirement for you to re-enroll for CHIP access from one period to the next.