I have a problem with MS project online string custom field using
Send an HTTP request to SharePoint
but initially after project was created the field is empty checking on (after checkout)_api/ProjectServer/Projects('ProjectUid')/draft/includecustomfields
it does not appear.
If I set data on this field on PWA save it and publish the above action work and I can update it.
In short how can I update this field when it's empty using MS power automate actions ?