posixAccounts API information missing - google-admin-sdk

Question

I'm not seeing my posixAccounts information from the following link:
https://developers.google.com/admin-sdk/directory/reference/rest/v1/users/get
{
"kind": "admin#directory#user",
"id": "8675309",
"etag": "\"UUID\"",
"primaryEmail": "email#example.com",
"name": {
"givenName": "Email",
"familyName": "Account",
"fullName": "Email Account"
},
"isAdmin": true,
"isDelegatedAdmin": false,
"lastLoginTime": "2021-08-04T21:11:17.000Z",
"creationTime": "2021-06-16T14:32:35.000Z",
"agreedToTerms": true,
"suspended": false,
"archived": false,
"changePasswordAtNextLogin": false,
"ipWhitelisted": false,
"emails": [
{
"address": "email#example.com",
"primary": true
},
{
"address": "email#example.com.test-google-a.com"
}
],
"phones": [
{
"value": "123-456-7890",
"type": "work"
}
],
"nonEditableAliases": [
"email#example.com.test-google-a.com"
],
"customerId": "id12345",
"orgUnitPath": "/path/to/org",
"isMailboxSetup": true,
"isEnrolledIn2Sv": false,
"isEnforcedIn2Sv": false,
"includeInGlobalAddressList": true
}
As you can see from the above output, there's no posixAccount information. I can open the ldap information in Apache Directory studio, so I know it's there, but I can't see it from the above output. Since I can see it though, I tried to update this using the update function in the API.
https://developers.google.com/admin-sdk/directory/reference/rest/v1/users/update
I used this for the payload as I'm just testing updating the gid information. I used the documentation below to get the entry details needed. At least as far as I could tell.
{
"posixAccounts": [
{
"gid": "12345",
}
]
}
https://developers.google.com/admin-sdk/directory/reference/rest/v1/users
I'm getting a 200 response, but nothing is actually changing for the user when doing a PUT to update.
I tried a similar update method from another user on here, but no avail: Google Admin SDK - Create posix attributes on existing user

Answer 1

I was able to get this resolved by supplying additional details in my PUT request:
{
"posixAccounts": [
{
"username": "email(excluding #domain.com)",
"uid": "1234",
"gid": "12345",
"operatingSystemType": "unspecified",
"shell": "/bin/bash",
"gecos": "Firstname Lastname"
"systemId": ""
}
]
}
The above wouldn't reflect in LDAP until I put "systemId" in there. So that part is required.