I have added MR button on production order page and we want to create MR from production order page.
just send Material Request parameter in data
e.g.
POST - http://frappe.local:8000/api/resource/Material Request
data: {
"naming_series": "MREQ-",
"material_request_type": "Purchase",
"items": [{items details here}]
}
check fields here - https://erpnext.org/docs/current/models/stock/material_request?