You have a Rates cube sheet at the Year time stratum holding various assumptions and...

In Workday Adaptive Planning, when a cube sheet is configured at the Year time stratum, all data stored in that sheet exists at the annual level — not at monthly periods. When formulas on monthly sheets or other sheets reference accounts from this year-stratum Rates cube sheet, the reference must include the [time=this.year] modifier to correctly resolve the time dimension. Without this modifier, a monthly formula attempting to reference a year-stratum account may return zero or an error because the system cannot automatically match a monthly time context to an annual data point. The [time=this.year] modifier explicitly instructs the formula to retrieve the annual value corresponding to the year in which the current period falls. Automatic breakback does not apply to formula references from external sheets. Monthly inputs cannot aggregate to a year-stratum cube sheet — data must be entered at the year level. References across different time strata require explicit time modifiers to ensure correct data retrieval. Reference: Workday Adaptive Planning — Cube Sheet Time Stratum, Cross-Sheet References, [time=this.year] Modifier.