Since older branch was there for feature/API-23 may be reason it was not able to create PR as it was trying to map with old existing feature branch, I have changed branch name to "feature/API-23-Document.Structure.Resource.Fields" from
feature/API-23-Document-Structure-Resource-Fields
Since older branch was there for feature/API-23 may be reason it was not able to create PR as it was trying to map with old existing feature branch, I have changed branch name to "feature/API-23-Document.Structure.Resource.Fields" from feature/API-23-Document-Structure-Resource-Fields