This is the limitation of parameter, if you choose to fill data in parameter form date field. There is no way that I can think of for refreshing the parameter automatically.
The work around would be create parameter with allowable values all.
Sorry no solution from my end yet.
hi vita nesvetailov,
As subodh Thapliyal has already mentioned Parameters are not as flexible as yo wish as of now. Entire Tableau community is demanding more flexible Parameters.
Have a look at this link and vote for it. https://community.tableau.com/ideas/1178
If this post assists in resolving the question, please mark it helpful or as the 'correct answer' if it resolves the question. This will help other users find the same answer/resolution. Thank you.
Thank you guys! And I totally support more on flexible Parameters