when try to set up current sprint on story on the basis of assignment group not geting current sprin

[GlideFather]

Hi @sudarshan5

please refer to this:
10+ Tips for writing a quality community question

And then try to describe your requirement better, this is too vague...

[M Iftikhar]

Hi @sudarshan5 ,

This looks like an expected behavior in Agile 2.0. The Sprint field is tied to the Assignment Group, which means unless the group is set, the Sprint field may appear read-only or not populate as you expect.
I’ve seen similar cases Community question which may resolve your problem:

In below community post users mentioned that the Sprint field only becomes editable once the assignment group is populated.
https://www.servicenow.com/community/spm-forum/agile-2-0-assigning-stories-to-sprints/m-p/1046335


KB article Sprint and Assignment group is not auto-populated on creation of a story from Sprint , which explains why the sprint/assignment group isn’t automatically set in some cases.
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0827739&utm

If you’d like it to populate automatically based on the assignment group, you may need to add a custom business rule or client script to enforce that logic. Out-of-the-box, the platform does not auto-assign Sprint purely from the group.

Thanks & Regards,
Muhammad Iftikhar

If my response helped, please mark it as the accepted solution so others can benefit as well.