Update rate price

Updates the prices for a given rate. You can make multiple price updates with one API call, and for each one specify the time interval for which the update applies, the price value and the applicable resource category. The price will be updated for all service time units that the specified time interval intersects. The price is per time unit, e.g. per day or per month. If the resource category CategoryId is not specified, the updated price will apply to the base price for all resource categories. Note that prices are defined daily, so when the server receives the UTC interval, it first converts it to the enterprise timezone and updates the price on all dates that the interval intersects. Only root rates can be updated (the rates that have no base rate, that have BaseRateId set to null). It is not permitted to update historical prices older than specified by EditableHistoryInterval. Future prices may be updated up to 5 years in the future. The maximum size of time interval is 100 time units or 2 years, whichever is the shorter amount of time.