Diagnosis
You changed the portion from &v1& to &v2& for the contract. You madethis change within a period-end billing period. However, you are notpermitted to change the portion within a period-end billing period.

Procedure
Ensure that the portion does not change within the period-end billingperiod. The current period-end billing period started on &v3&. If youwish to allocate the contract to a different portion, you can do thisafter the end of the period-end billing period.