Custom connector works in testing but not in flow.

[nothankyou000]

Hello,

I recently built a custom connector, it works when tested, but when I try to use it in Power Automate I get this error:

Here is the swagger:

I was wondering if someone may have an idea on why I keep getting this error.

Thank you. 

[thazlett · Accepted solution]

Hi there,

Unfortunately, there is currently a bug in the test connectors page where it will accept a string as an object.  To fix the error in Flow, you will need to make your response an object in swagger. 

[rubengzz1]

Hello, I am getting the same error.

 Property "" type mismatch, Expected: "object", Actual: "string".

The weird thing is that is working on Test Connector but not in the Flow.

swagger: '2.0'
info:
  title: MFA Graph API Token
  description: ''
  version: '1.0'
host: graph.microsoft.com
basePath: /
schemes:
  - https
consumes: []
produces: []
paths:
  /v1.0/users/2314843c-edc7-41ce-a1d0-fb31308da83c/authentication/methods/28c10230-6103-485e-b985-444c60001490/resetPassword: {}
  /v1.0/users/{UserID}/authentication/methods/28c10230-6103-485e-b985-444c60001490/resetPassword:
    post:
      responses:
        default:
          description: default
          schema:
            type: object
            properties:
              data:
                type: object
            description: Placeholder response property
          headers:
            HTTP/1.1:
              description: HTTP/1.1
              type: string
            Content-type:
              description: Content-type
              type: string
            Location:
              description: Location
              type: string
      summary: ResetPasswordAD
      operationId: ResetPassword
      description: This connector resets the password for AD users
      parameters:
        - name: UserID
          in: path
          required: true
          type: string
        - name: Content-type
          in: header
          required: false
          type: string
        - name: body
          in: body
          required: false
          schema:
            type: object
            properties:
              newPassword:
                type: string
          description: Request body containing the newPassword field
definitions: {}
parameters: {}
responses: {}
securityDefinitions:
  oauth2-auth:
    type: oauth2
    flow: accessCode
    tokenUrl: https://login.windows.net/common/oauth2/authorize
    scopes:
      UserAuthenticationMethod.ReadWrite.All: UserAuthenticationMethod.ReadWrite.All
    authorizationUrl: https://login.microsoftonline.com/common/oauth2/authorize
security:
  - oauth2-auth:
      - UserAuthenticationMethod.ReadWrite.All
tags: []