model Sport {
  name  String  @id
}

model NameReconciliation {
  id  String @default(uuid()) @id
  target String
  name String
  sport Sport? @relation(fields: [sportId], references: [name])
  sportId String?
}

export type NameReconciliationCreateInput = {
  id?: string | null
  target: string
  name: string
  sport?: SportCreateOneWithoutNameReconciliationInput | null
}

createNameReconciliation(root: any, { name, target, sportId }: any, ctx: Context): Promise<NameReconciliation | null> {
            return ctx.prisma.nameReconciliation.create({
                data: {
                    name,
                    sport: null,
                    target
                }
            })
        }

 mutation {
  createNameReconciliation(name: "soccer2",  target: "football") {id, name}
}

"message": "\nInvalid prisma.nameReconciliation.create() invocation in\n/home/****/src/resolvers/reconciliate.ts:14:50
Missing a required value at Mutation.createOneNameReconciliation.data.NameReconciliationCreateInput.sport"

"extensions": {
        "code": "INTERNAL_SERVER_ERROR",
        "exception": {
          "code": "P2012",
          "meta": {
            "path": "Mutation.createOneNameReconciliation.data.NameReconciliationCreateInput.sport"
          },
          "stacktrace": [
            "Error: ",
            "Invalid `prisma.nameReconciliation.create()` invocation in",
            "/home/****/src/resolvers/reconciliate.ts:14:50",
            "",
            "Missing a required value at `Mutation.createOneNameReconciliation.data.NameReconciliationCreateInput.sport`",
            "    at PrismaClientFetcher.request (/home/****/node_modules/@prisma/client/src/runtime/getPrismaClient.ts:647:15)",
            "    at processTicksAndRejections (internal/process/task_queues.js:97:5)"
          ]
        }
      }