How to check a lead exists or not

[Anonymous]

I have created a user who has access to all the lead partitions. but still am not able to update the lead details. it shows the same error message.

"{\"requestId\":\"938a#14f600c4689\",\"result\":[{\"status\":\"skipped\",\"reasons\":[{\"code\":\"1010\",\"message\":\"Partition update not allowed\"}]}],\"success\":true}"

i even tried with giving the admin access to this user , but no luck . its still giving the same error.

Is there any solution for this issue.?

Thanks in advance

Jay