E15053 — WhatsAppMessageNotInGroup

This message is not one this group carries, so it cannot be pinned or unpinned here.

• HTTP status: 422
• Type: validation_error
• Name: WhatsAppMessageNotInGroup

What to do

Pinning belongs to one group's chat. A message's to.group_id says which group it belongs to, and is absent on a message sent to a single recipient; pin the message through the group that carries it.

Related

• E15xxx — WhatsApp sending & delivery: every code in this range
• Errors: the full wire contract, status mapping, and error catalog
• Error handling: branching on type and code, validation details, and vendor_code