I have tried all this 3 API , i am getting 202 response but it does not transfer the call to queue/user/external number.
/v2/conversations/{conversation ID}/participants/{participant ID to replace}/replace/queue
/v2/conversations/{conversation ID}/participants/{participant ID to replace}/replace/agent
/v2/conversations/{conversation ID}/participants/{participant ID to replace}/replace/external
Attaching screenshot for your reference. Attached sample API which i have tested.
POST /api/v2/conversations/017f32bb-496e-43b4-48eaea5a83f0/participants/c6e92e23-44df-48d6-7492cdef0f72/replace/external
Please open a case with Genesys Cloud Care to investigate. The API is working as intended, but Care will have to investigate what's failing downstream.