Issue with float type field "Specify a number for the custom field below ..." error for small values

When i try import new issue (/rest/api/2/issue in jira software cloud) and try populate a float type field Jira always responds with below error.
“errors”:{“customfield_10412”:“Specify a number for the custom field (below 100,000,000,000,000)”

I have tried both string and double type for VBA. No success yet.
“customfield_10412”:{“value”:12}
“customfield_10412”:{“value”:“12.0”}

Anyone please suggest?

Turned out to be the format issue with the json. Fixed myself. Thank you.