Updating MultiSelect Value is not working in jira cloud

[Sneha A S]

def practice2 = put("/rest/api/2/issue/${issueKey}")
.header('Content-Type', 'application/json')
.body([
fields: [
customfield_10104:[{value:val1},{value:val2 }] ,

]
])
.asString()
}

[DPKJ]

@Sneha A Shave you tried this with API v3. Mentioned here - https://developer.atlassian.com/cloud/jira/platform/rest/v3/#api-rest-api-3-issue-issueIdOrKey-put

[Sneha A S]

ya.....i tried but still it is not working