Mass Update Account Forecasts Actions

Question

I came across Mass Update Account Forecasts Actions which updates multiple values of a single metric of an account forecast.

So I am trying to update the last year's order quantity metric for a product on particular period in account forecast by a flow.

Error Occurred: Unexpected data type for periods: expected String[]

Able to get the records using the query but I am not able to view the PeriodIds in the UI.

SELECT Id, AccForecastPeriodMetricId, AccountProductForecastId, Name, PeriodId, PastOrdersQuantity
From AccountProductPeriodForecast
WHERE AccountProductForecastId = '0yB3t000000gGEKEA2'

Please help me to understand what is causing the issue. Thanks in Advance!