You can define a hidden item, then substitute the value of that in your column header using "&P1_MONTH3."
So perhaps when you change period, a dynamic action will fire that refreshes your region. Prior to refresh, set the hidden item to what you need.
Scott, I'm sorry but I did not find any examples of how to do this as you're talking about.
By chance do you have a step by step how to do this in Apex, or by chance, you can access my application and show me how I can do this?
Here's the connection data:
Workspace = tallsist
Username = email@example.com
Password = 77665544
application: BI_MANUTENCAO_CADASTRO (72475)
Page 1, where do I need to change the region Validation Indicators, column "VLR_MEDIA3", I need to leave it in a way that in a column of the select I pass a parameter to this change the name of this column - VCI.VLIN_PERIODO.