Checker — Contacts & Groups

Verify contacts and groups before sending, and check delivery of the last message.

Contact Statuses

Status	Description
Available	Contact exists on WhatsApp, can send
UnAvailable	Not registered. Cannot send
NoChat	Number exists but no chat history

Group Statuses

Status	Description
CanJoin	Group open, can join freely
ApproveJoin	Admin approval required
CanTJoin	Cannot join
Joined	Already a member
UnAvailable	Group not found or unavailable

Chat Name Column Format (Groups)

Displayed as: Name:Count:CanWrite or Name:Count:CantWrite

Examples:

• "Sales Team":24:CanWrite — 24 members, can post
• Group:23:CantWrite — 23 members, only admins can post

Status	Description
CanWrite	Can send messages in the group
CantWrite	Posting restricted to admins

Message Delivery Check Statuses

Checks the last sent message to detect blocks.

Status	Description
UnDelivered	Not delivered (ack=1). Possible block — do not send
delivered	Delivered (ack=2). Available but hasn’t read
read	Read (ack=3). Best contact category
NoChat	Chat not found

How to Use

1. Load contacts or groups
2. Run Check Recipients or Check Messages
3. Wait for statuses to update
4. Filter out UnAvailable and UnDelivered before sending