Unable to update the line for a period prior to the ETC start date of the forecast version

Summary:

Unable to create or update the line for a period prior to the ETC start date of the forecast version.

Content (please ensure you mask any confidential information):

Hi team,

We are creating the forecast with 2 different statuses- Current working and Working and i am not sure how it is populating the ETC start date on each versions.

For Working version ETC start date is 1-Feb-2025 and for Current Working version it is populating ETC start date as 1-Mar-2025.

We have the requirement to update the Current Working forecast version daily. When we are trying to do that, we are getting the error- You cannot or update a line for the period DEC-25 because it´s prior to the period of the ETC start date 2025-02-01 of the forecast version.