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POST
Create Subscriber
Creates a subscriber (contact) on a connected WhatsApp number, without requiring them to message your bot first — useful for importing existing contacts from a CRM or signup form.
Nothing is validated. A phoneNumber such as abc creates a contact with an empty chat ID, which can then never be looked up or deleted through the API, and an empty name is accepted too. Validate both before calling — the phone number must be digits only, country code first, no +. Every contact counts toward your subscriber limit.
If the contact already exists the response is {"status":"0","message":"Something went wrong or subscriber already exist."}.

Body

application/x-www-form-urlencoded
apiToken
string
required

Your ChatSyncs API key (not a WhatsApp/Meta access token). Where to find it.

Example:

"API-KEY"

phoneNumberID
string
required

The WhatsApp account's phone number ID to create this subscriber under. (Note: camelCase.) Where to find it.

Example:

"PHONE-NUMBER-ID"

name
string
required

The subscriber's name.

Example:

"NAME"

phoneNumber
string
required

The subscriber's number, with country code and no + sign, digits only. (Note: camelCase.)

Example:

"MOBILE"

Response

Standard ChatSyncs response. status is "1" on success and "0" on failure.

status
string

"1" = success, "0" = failure.

message
string

Human-readable result message.