REST API - Error This relationship field has the following invalid relationships: 51 0 #7
Description
Using the REST API since i am using Python to create a Post it keeps giving me the error:
Response: {"errors":[{"name":"b","data":{"collection":"posts","errors":[{"label":"Meta > Related Posts","message":"This field has the following invalid selections: 71, ","path":"relatedPosts"}]},"message":"The following field is invalid: Meta > Related Posts"}]}
I have tried sending it in multiple ways, like literally reading another Posts's relatedPosts and sending them here so as to be sure of the format and the error persists. I saw that similar errors #2 already existed in the payloadcms package and have recently suposedly been fixed, but on the REST API it seems to persist. The id field keeps giving problems...
[{'id': 71,
'trendingScore': 6,
'title': 'Long Immigration Lines ',
'categories': [{'id': 7,
'title': 'Immigration',
'slug': 'immigration',
'slugLock': True,
'parent': None,
'breadcrumbs': [{'id': '685c67e7136dc700015e4225',
'doc': 7,
'url': '/immigration',
'label': 'Immigration'}],
'updatedAt': '2025-06-25T21:19:35.301Z',
'createdAt': '2025-06-25T21:19:35.277Z'},
{'id': 13,
'title': 'Transportation',
'slug': 'transportation',
'slugLock': True,
'parent': None,
'breadcrumbs': [{'id': '685f0627e32a20000182421b',
'doc': 13,
'url': '/transportation',
'label': 'Transportation'}],
'updatedAt': '2025-06-27T20:59:19.603Z',
'createdAt': '2025-06-27T20:59:19.578Z'}],
'publishedAt': '2025-07-02T13:22:15.887Z',
'slug': 'long-immigration-lines-test-portugals-new-high-tech-border-checks',
'meta': {'title': 'Long Immigration Lines Test Portugal’s New Border Checks',
'image': {'id': 32,
'alt': 'Airport Lines',
'caption': None,
'updatedAt': '2025-07-03T08:33:11.204Z',
'createdAt': '2025-07-02T12:55:03.135Z',
'url': '/api/media/file/hero_9-1.jpg',
'thumbnailURL': '/api/media/file/hero_9-1-300x300.jpg',
'filename': 'hero_9-1.jpg',
'mimeType': 'image/jpeg',
'filesize': 101474,
'width': 745,
'height': 745,
'focalX': 50,
'focalY': 50,
'sizes': {'thumbnail': {'url': '/api/media/file/hero_9-1-300x300.jpg',
'width': 300,
'height': 300,
'mimeType': 'image/jpeg',
'filesize': 21851,
'filename': 'hero_9-1-300x300.jpg'},
'square': {'url': '/api/media/file/hero_9-1-500x500.jpg',
'width': 500,
'height': 500,
'mimeType': 'image/jpeg',
'filesize': 52726,
'filename': 'hero_9-1-500x500.jpg'},
'small': {'url': '/api/media/file/hero_9-1-600x600.jpg',
'width': 600,
'height': 600,
'mimeType': 'image/jpeg',
'filesize': 70965,
'filename': 'hero_9-1-600x600.jpg'},
'medium': {'url': None,
'width': None,
'height': None,
'mimeType': None,
'filesize': None,
'filename': None},
'large': {'url': None,
'width': None,
'height': None,
'mimeType': None,
'filesize': None,
'filename': None},
'xlarge': {'url': None,
'width': None,
'height': None,
'mimeType': None,
'filesize': None,
'filename': None},
'og': {'url': '/api/media/file/hero_9-1-1200x630.jpg',
'width': 1200,
'height': 630,
'mimeType': 'image/jpeg',
'filesize': 125472,
'filename': 'hero_9-1-1200x630.jpg'}}},
'description': 'Expect long queues at airport border control as new VIS4 security system rolls out. Read more.'}}]