Getting 401 when creating invite using sdk

[kaushal1717]

I am currently creating one POS like system and when admin creates a new employee and if employee is store_login or admin then we will create a new user by providing one hardcoded password and email but when I am creating an invite I am getting 401 unauthorized error

I am attaching my code so you can have a better idea

import { createStep, StepResponse } from "@medusajs/framework/workflows-sdk";
import StaffModuleService from "../../modules/staff/service";
import { STAFF_MODULE } from "../../modules/staff";
import { sdk } from "../../lib/sdk";

export type StaffData = {
  id: string;
  first_name: string;
  last_name: string;
  email: string;
  phone_number: string;
  role: "ADMIN" | "STORE_LOGIN" | "STAFF";
  store_id: string;
};

export type CreateStaffWorkflowInput = StaffData;

export const createStaffStep = createStep(
  "create-staff-step",
  async (input: CreateStaffWorkflowInput, { container }) => {
    console.log("In this step");
    const staffModuleService: StaffModuleService =
      container.resolve(STAFF_MODULE);

    console.log("Staff module service");

    // Special handling for admin and store_login roles
    if (input.role === "ADMIN" || input.role === "STORE_LOGIN") {
      try {

        // Step 1: Register with email and password using SDK
        console.log("Starting registration process...");
        const registrationToken = await sdk.auth.register("user", "emailpass", {
          email: input.email,
          password: "test@1234",
        });

        console.log("Registration successful, token received");
        
        // Step 2: Create an invite
        console.log("Creating invite...");
        const { invite } = await sdk.admin.invite.create({
          email: input.email,
        });
        console.log("Invite created successfully");

        console.log("Invite response", invite);

        // Step 3: Accept the invitation using SDK
        console.log("Accepting invitation...");
        const response = await sdk.admin.invite.accept(
          {
            email: input.email,
            first_name: input.first_name,
            last_name: input.last_name,
            invite_token: invite.token,
          },
          {},
          {
            Authorization: `Bearer ${registrationToken}`,
          }
        );

        console.log("Invitation accepted successfully", response);
        return;
      } catch (error) {
        console.error("Error during staff registration process:", error);
        throw new Error(`Failed to register staff: ${error.message}`);
      }
    }

    // Create the staff record
    const item = await staffModuleService.createStaff(input);

    return new StepResponse(item, item.id);
  },
  async (id, { container }) => {
    if (!id) return;

    const staffModuleService: StaffModuleService =
      container.resolve(STAFF_MODULE);

    await staffModuleService.deleteStaff(id);
  }
);