2712387 - SAP Analytics Cloud (SAC) - Dynamic references in LastPeriods

• Creating a formula that contains LastPeriods results in error if the period is defined dynamically.
• For example: LOOKUP([AMT], [d/Time] = LastPeriods ("Month",[NUM]))
• For such a formula to work, the number must be defined within the formula.
• It doesn't work if it references a measure.
• Even if the measure contains numbers, SAP Analytics Cloud does not accept the formula and provides an error message:   "Formula could not be computed: Function LastPeriods expects parameter 2 of type "Number", but receives "Number"; try using the expected parameter type. Try rewriting the formula."

• SAP Analytics Cloud 2018.18

1. Create a new model.
2. Create an account dimension.
3. Create three items: AMT, AMT_MEAN, and NUM.
4. Define "NUM" with the following formula: MOD(DECFLOAT([d/Time].[p/CALMONTH]),100)
5. Define "AMT_MEAN" with the following formula: LOOKUP([AMT],[d/Time] = LastPeriods ("Month",[NUM]))

• The “LastPeriods“ formula is not designed to work with dynamic inputs.
• Only constant numbers can be used in the formula.

This is a feature enhancement and may be considered in a future release

• How to find User Assistance for SAP Analytics Cloud?
• Ask a question on the SAP Community!
• 2487011 - What information do I need to provide when opening incidents with SAP Analytics Cloud (Hint: Use component LOD-ANA*)

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