This indicator must be set to Yes in the case where :
If the indicator is set to No, the specific/customizations will not be updated when a revalidation is carried out if they exist already.
This flag is used to distinguish the vertical developments that are likely to be installed in a group of folders and updated by revalidation at three levels, and the developments made in the folder at the lowest level (developments carried out by the customer for example).
For more information, it is advisable to refer to the corresponding technical annex.