StringNotEquals

compares a string in a request to a list of strings in your policy. The comparison is case sensitive.

To match a request, the context key can be absent, but if present it must NOT match any of the strings in your policy.

You can use policy variables in the value of this operator.

StringNotEquals in an Allow Statement

Policy Condition	Request Context	Result
"StringNotEquals": { "aws:RequestTag/DataClass": [ "public", "internal" ] }	`aws:RequestTag/DataClass: null`	✓ Allowed Assuming no explicit Deny elsewhere
"StringNotEquals": { "aws:RequestTag/DataClass": [ "public", "internal" ] }	`aws:RequestTag/DataClass: private`	✓ Allowed Assuming no explicit Deny elsewhere
"StringNotEquals": { "aws:RequestTag/DataClass": [ "public", "internal" ] }	`aws:RequestTag/DataClass: public`	− Not Allowed Statement does not apply

Policy Condition Request Context Result

Policy Condition	Request Context	Result
"StringNotEquals": { "aws:RequestTag/DataClass": [ "public", "internal" ] }	`aws:RequestTag/DataClass: null`	✕ Denied
"StringNotEquals": { "aws:RequestTag/DataClass": [ "public", "internal" ] }	`aws:RequestTag/DataClass: private`	✕ Denied
"StringNotEquals": { "aws:RequestTag/DataClass": [ "public", "internal" ] }	`aws:RequestTag/DataClass: public`	− Not Denied May be allowed by another statement

"StringNotEquals": {
  "aws:RequestTag/DataClass": [
    "public",
    "internal"
  ]
}

aws:RequestTag/DataClass: null

✕ Denied

"StringNotEquals": {
  "aws:RequestTag/DataClass": [
    "public",
    "internal"
  ]
}

aws:RequestTag/DataClass: private

✕ Denied

"StringNotEquals": {
  "aws:RequestTag/DataClass": [
    "public",
    "internal"
  ]
}

aws:RequestTag/DataClass: public

− Not Denied May be allowed by another statement