How long will it take to enable to patch private preview feature?

[chialiyun]

I have just sent a request via the form, to my subscription id (b57bffe2-3e1b-49fe-82b1-1aba60464293).

May I check, how long will it take for the feature to be enabled?

Also, in the meantime, I am trying the patch operation with the code below

List<PatchOperation> patchOperations = new List<PatchOperation>();
            patchOperations.Add(PatchOperation.Replace("/endpointId", 100));
string id = "id1";
PartitionKey partitionKey = new PartitionKey("partitionkey1");

await _container.PatchItemAsync<Watermark>(id,
    partitionKey,
    patchOperations);

However, I am faced with Message: {"Errors":["One of the specified inputs is invalid"]}.

Is it because the feature has not been enabled? Thank you!

[sajeetharan]

@chialiyun Usually it should get activated within an hour or so. Can you provide DatabaseAccountName on which you want the Patch to be enabled?