issue while editing value of editable custom measure

Summary:

We have a custom measure X, that does not have a time dimension. The dimensions for this measure are demand class, organization, and supplier. Allow editing is enabled for the item, and Refresh with current data is also enabled.
A user edits the measure value (for example, from 1 to 2) and saves it. The value remains 2 until the next supply plan run, but after the daily plan run, it automatically reverts to 1. The saved value does not persist. The client wants to update the values for this measure across multiple suppliers.

However, a warning appears in the pivot table: “You can edit this measure only if both the organization and time dimensions are included in the pivot table definition.”