I am thinking this from Planning, right? I think they are showing members in the order they are in the outline and don't have a way to sort them alphabetically.
the users see the alias or ID?
When it is the ID, then I can agree what Sree said. If it is the alias, you have a bigger challenge. Sorting the children on Alias.
I would recommend to use a relational table for creating the dimension files in EPMA or OutlineLoad.
No it is not possible to do. If it is an EPMA application then you can use EPMA sort order to acheive the same.
Please let us know the status of the issue.
kindly mark it helpful or answered to close this post.