Synchronization.ReadWrite.All

const options = {
	authProvider,
};

const client = Client.init(options);

const secrets = {
    value: [
        {
            key: 'BaseAddress',
            value: '[email protected]'
        },
        {
            key: 'SecretToken',
            value: 'password-value'
        },
        {
            key: 'SyncNotificationSettings',
            value: '{\"Enabled\':false,\'DeleteThresholdEnabled\':false}"
        },
        {
            key: 'SyncAll',
            value: 'false'
        }
    ]
};

await client.api('/servicePrincipals/{id}/synchronization/secrets')
	.put(secrets);

Import-Module Microsoft.Graph.Applications

$params = @{
	value = @(
		@{
			key = "BaseAddress"
			value = "[email protected]"
		}
		@{
			key = "SecretToken"
			value = "password-value"
		}
		@{
			key = "SyncNotificationSettings"
			value = '{"Enabled":false,"DeleteThresholdEnabled":false}'
		}
		@{
			key = "SyncAll"
			value = "false"
		}
	)
}

Set-MgServicePrincipalSynchronizationSecret -ServicePrincipalId $servicePrincipalId -BodyParameter $params

# Code snippets are only available for the latest version. Current version is 1.x
from msgraph import GraphServiceClient
from msgraph.generated.serviceprincipals.item.synchronization.secrets.secrets_put_request_body import SecretsPutRequestBody
from msgraph.generated.models.synchronization_secret_key_string_value_pair import SynchronizationSecretKeyStringValuePair
from msgraph.generated.models.synchronization_secret import SynchronizationSecret
# To initialize your graph_client, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=python
request_body = SecretsPutRequestBody(
	value = [
		SynchronizationSecretKeyStringValuePair(
			key = SynchronizationSecret.BaseAddress,
			value = "[email protected]",
		),
		SynchronizationSecretKeyStringValuePair(
			key = SynchronizationSecret.SecretToken,
			value = "password-value",
		),
		SynchronizationSecretKeyStringValuePair(
			key = SynchronizationSecret.SyncNotificationSettings,
			value = "{\"Enabled\":false,\"DeleteThresholdEnabled\":false}",
		),
		SynchronizationSecretKeyStringValuePair(
			key = SynchronizationSecret.SyncAll,
			value = "false",
		),
	],
)

result = await graph_client.service_principals.by_service_principal_id('servicePrincipal-id').synchronization.secrets.put(request_body)