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Session Id : MOCpJSleJtFe51152361i5
Power Platform Community / Forums / Power Apps - Connector Development / Cannot add custom conn...
Power Apps - Connector Development
Answered

Cannot add custom connector to Power Apps

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Posted on 7 May 2025 21:06:36 by CG-07052056-0 20
I have tested multiple custom connectors with simple GET requests to 3rd parties like Zendesk.

There are no errors in my YAML. The connector works fine in test, and on automate flows.
I have defined the request, parameters, and response.
I have tried with both Basic Auth, OAuth, and API token they all work except for in power apps.

Issue- I cannot add the connector to power apps. I get the same error no matter what custom connector I try.
It won't even let me add the connector.
I have tried making new apps, refreshing, and creating the connection from within the app.

No wadlUrl is specified for this Api. This usually indicates there was an error when converting the Swagger associated with this api to a WADL file.
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  • Vektori1 Profile Picture
    Vektori1 16 on 27 May 2025 at 12:13:38
    Cannot add custom connector to Power Apps
    This is not solved, remaking the connector and not editing fixes only part of the problem, it can still give the No wadUrl is specified for this Api error.
  • stampcoin Profile Picture
    stampcoin 2,354 on 15 May 2025 at 08:53:22
    Cannot add custom connector to Power Apps
    Thanks for sharing.
     
  • Verified answer
    CG-07052056-0 Profile Picture
    CG-07052056-0 20 on 14 May 2025 at 18:19:42
    Cannot add custom connector to Power Apps

    **Solved, Just remade the connector from start to finish.

    Looks like a bug with the way the Microsoft page generates the swagger.

    It works if I setup everything correctly initially, But if I make a connector and then edit it, the update is additive, it doesn't remove the old code. I have 2 connectors that look identical in the edit UI, but the backend code thats generated is different. đź¤·

  • CG-07052056-0 Profile Picture
    CG-07052056-0 20 on 12 May 2025 at 14:08:00
    Cannot add custom connector to Power Apps
    Here is the YAML that was generated by the Custom Connector UI with my specific domain removed.

    You can see that it contains no x-ms-dynamic, or triggers.
    It also saves without errors on multiple YAML editors.

    I did take a look at that link but wasn't able to get it working.
    My plan now is to find a really simple 3rd party API to test that has a well documented working example.

    Unless someone knows of a way to force the WADL file to be created.

      
    swagger: '2.0'
info:
  title: Zendesk Sandbox API
  description: |-
    Custom Connector used to make API calls to the Zendesk Sandbox Environment.
    Functions (GetTicket)
  version: '1.0'
host: mySubDomain.zendesk.com
basePath: /api/v2
schemes:
  - https
paths:
  /tickets/{ticket_id}.json:
    get:
      responses:
        '200':
          description: default
          schema:
            type: object
            properties:
              ticket:
                type: object
                properties:
                  assignee_id:
                    type: integer
                    format: int32
                    description: assignee_id
                  collaborator_ids:
                    type: array
                    items:
                      type: integer
                      format: int32
                    description: collaborator_ids
                  created_at:
                    type: string
                    description: created_at
                  custom_fields:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: integer
                          format: int32
                          description: id
                        value:
                          type: string
                          description: value
                    description: custom_fields
                  custom_status_id:
                    type: integer
                    format: int32
                    description: custom_status_id
                  description:
                    type: string
                    description: description
                  due_at:
                    type: string
                    description: due_at
                  external_id:
                    type: string
                    description: external_id
                  follower_ids:
                    type: array
                    items:
                      type: integer
                      format: int32
                    description: follower_ids
                  from_messaging_channel:
                    type: boolean
                    description: from_messaging_channel
                  generated_timestamp:
                    type: integer
                    format: int32
                    description: generated_timestamp
                  group_id:
                    type: integer
                    format: int32
                    description: group_id
                  has_incidents:
                    type: boolean
                    description: has_incidents
                  id:
                    type: integer
                    format: int32
                    description: id
                  organization_id:
                    type: integer
                    format: int32
                    description: organization_id
                  priority:
                    type: string
                    description: priority
                  problem_id:
                    type: integer
                    format: int32
                    description: problem_id
                  raw_subject:
                    type: string
                    description: raw_subject
                  recipient:
                    type: string
                    description: recipient
                  requester_id:
                    type: integer
                    format: int32
                    description: requester_id
                  satisfaction_rating:
                    type: object
                    properties:
                      comment:
                        type: string
                        description: comment
                      id:
                        type: integer
                        format: int32
                        description: id
                      score:
                        type: string
                        description: score
                    description: satisfaction_rating
                  sharing_agreement_ids:
                    type: array
                    items:
                      type: integer
                      format: int32
                    description: sharing_agreement_ids
                  status:
                    type: string
                    description: status
                  subject:
                    type: string
                    description: subject
                  submitter_id:
                    type: integer
                    format: int32
                    description: submitter_id
                  tags:
                    type: array
                    items:
                      type: string
                    description: tags
                  type:
                    type: string
                    description: type
                  updated_at:
                    type: string
                    description: updated_at
                  url:
                    type: string
                    description: url
                  via:
                    type: object
                    properties:
                      channel:
                        type: string
                        description: channel
                    description: via
                description: ticket
        default:
          description: default
          schema:
            type: object
            properties:
              statusCode:
                type: integer
                format: int32
                description: statusCode
              headers:
                type: object
                properties:
                  Cache-Control:
                    type: string
                    description: Cache-Control
                  Transfer-Encoding:
                    type: string
                    description: Transfer-Encoding
                  Via:
                    type: string
                    description: Via
                  ETag:
                    type: string
                    description: ETag
                  x-zendesk-api-version:
                    type: string
                    description: x-zendesk-api-version
                  x-zendesk-application-version:
                    type: string
                    description: x-zendesk-application-version
                  X-Frame-Options:
                    type: string
                    description: X-Frame-Options
                  x-zendesk-private-db-runtime:
                    type: string
                    description: x-zendesk-private-db-runtime
                  x-rate-limit:
                    type: string
                    description: x-rate-limit
                  ratelimit-limit:
                    type: string
                    description: ratelimit-limit
                  x-rate-limit-remaining:
                    type: string
                    description: x-rate-limit-remaining
                  ratelimit-remaining:
                    type: string
                    description: ratelimit-remaining
                  ratelimit-reset:
                    type: string
                    description: ratelimit-reset
                  x-zendesk-private-zendesk-ratelimit-account-wide-api-requests:
                    type: string
                    description: >-
                      x-zendesk-private-zendesk-ratelimit-account-wide-api-requests
                  x-zendesk-private-zendesk-ratelimit-api-requests:
                    type: string
                    description: x-zendesk-private-zendesk-ratelimit-api-requests
                  Strict-Transport-Security:
                    type: string
                    description: Strict-Transport-Security
                  zendesk-route:
                    type: string
                    description: zendesk-route
                  x-zendesk-private-auth-info:
                    type: object
                    properties:
                      via:
                        type: string
                        description: via
                      token:
                        type: object
                        properties:
                          id:
                            type: integer
                            format: int32
                            description: id
                        description: token
                    description: x-zendesk-private-auth-info
                  x-zendesk-origin-server:
                    type: string
                    description: x-zendesk-origin-server
                  X-Request-ID:
                    type: string
                    description: X-Request-ID
                  x-runtime:
                    type: string
                    description: x-runtime
                  x-envoy-upstream-service-time:
                    type: string
                    description: x-envoy-upstream-service-time
                  zendesk-service:
                    type: string
                    description: zendesk-service
                  x-zendesk-api-gateway:
                    type: string
                    description: x-zendesk-api-gateway
                  x-kong-upstream-latency:
                    type: string
                    description: x-kong-upstream-latency
                  x-kong-proxy-latency:
                    type: string
                    description: x-kong-proxy-latency
                  x-zendesk-zorg:
                    type: string
                    description: x-zendesk-zorg
                  Vary:
                    type: string
                    description: Vary
                  x-envoy-decorator-operation:
                    type: string
                    description: x-envoy-decorator-operation
                  cf-cache-status:
                    type: string
                    description: cf-cache-status
                  Report-To:
                    type: object
                    properties:
                      endpoints:
                        type: array
                        items:
                          type: object
                          properties:
                            url:
                              type: string
                              description: url
                        description: endpoints
                      group:
                        type: string
                        description: group
                      max_age:
                        type: integer
                        format: int32
                        description: max_age
                    description: Report-To
                  NEL:
                    type: object
                    properties:
                      success_fraction:
                        type: number
                        format: float
                        description: success_fraction
                      report_to:
                        type: string
                        description: report_to
                      max_age:
                        type: integer
                        format: int32
                        description: max_age
                    description: NEL
                  Set-Cookie:
                    type: string
                    description: Set-Cookie
                  CF-RAY:
                    type: string
                    description: CF-RAY
                  x-ms-environment-id:
                    type: string
                    description: x-ms-environment-id
                  x-ms-tenant-id:
                    type: string
                    description: x-ms-tenant-id
                  x-ms-dlp-re:
                    type: string
                    description: x-ms-dlp-re
                  x-ms-dlp-gu:
                    type: string
                    description: x-ms-dlp-gu
                  x-ms-apihub-cached-response:
                    type: string
                    description: x-ms-apihub-cached-response
                  x-ms-apihub-obo:
                    type: string
                    description: x-ms-apihub-obo
                  Date:
                    type: string
                    description: Date
                  Content-Type:
                    type: string
                    description: Content-Type
                  Content-Length:
                    type: string
                    description: Content-Length
                description: headers
              body:
                type: object
                properties:
                  ticket:
                    type: object
                    properties:
                      url:
                        type: string
                        description: url
                      id:
                        type: integer
                        format: int32
                        description: id
                      via:
                        type: object
                        properties:
                          channel:
                            type: string
                            description: channel
                          source:
                            type: object
                            properties:
                              from:
                                type: object
                                properties: {}
                                description: from
                              to:
                                type: object
                                properties: {}
                                description: to
                              rel:
                                type: string
                                description: rel
                            description: source
                        description: via
                      created_at:
                        type: string
                        description: created_at
                      updated_at:
                        type: string
                        description: updated_at
                      generated_timestamp:
                        type: integer
                        format: int32
                        description: generated_timestamp
                      type:
                        type: string
                        description: type
                      subject:
                        type: string
                        description: subject
                      raw_subject:
                        type: string
                        description: raw_subject
                      description:
                        type: string
                        description: description
                      priority:
                        type: string
                        description: priority
                      status:
                        type: string
                        description: status
                      requester_id:
                        type: integer
                        format: int32
                        description: requester_id
                      submitter_id:
                        type: integer
                        format: int32
                        description: submitter_id
                      assignee_id:
                        type: integer
                        format: int32
                        description: assignee_id
                      group_id:
                        type: integer
                        format: int32
                        description: group_id
                      collaborator_ids:
                        type: array
                        items: {}
                        description: collaborator_ids
                      follower_ids:
                        type: array
                        items: {}
                        description: follower_ids
                      email_cc_ids:
                        type: array
                        items: {}
                        description: email_cc_ids
                      has_incidents:
                        type: boolean
                        description: has_incidents
                      is_public:
                        type: boolean
                        description: is_public
                      tags:
                        type: array
                        items:
                          type: string
                        description: tags
                      custom_fields:
                        type: array
                        items:
                          type: object
                          properties:
                            id:
                              type: integer
                              format: int32
                              description: id
                        description: custom_fields
                      satisfaction_rating:
                        type: object
                        properties:
                          score:
                            type: string
                            description: score
                        description: satisfaction_rating
                      sharing_agreement_ids:
                        type: array
                        items: {}
                        description: sharing_agreement_ids
                      custom_status_id:
                        type: integer
                        format: int32
                        description: custom_status_id
                      encoded_id:
                        type: string
                        description: encoded_id
                      fields:
                        type: array
                        items:
                          type: object
                          properties:
                            id:
                              type: integer
                              format: int32
                              description: id
                            value:
                              type: string
                              description: value
                        description: fields
                      followup_ids:
                        type: array
                        items: {}
                        description: followup_ids
                      ticket_form_id:
                        type: integer
                        format: int32
                        description: ticket_form_id
                      deleted_ticket_form_id:
                        type: integer
                        format: int32
                        description: deleted_ticket_form_id
                      brand_id:
                        type: integer
                        format: int32
                        description: brand_id
                      allow_channelback:
                        type: boolean
                        description: allow_channelback
                      allow_attachments:
                        type: boolean
                        description: allow_attachments
                      from_messaging_channel:
                        type: boolean
                        description: from_messaging_channel
                    description: ticket
                  deleted_ticket_forms:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: integer
                          format: int32
                          description: id
                        raw_name:
                          type: string
                          description: raw_name
                        raw_display_name:
                          type: string
                          description: raw_display_name
                        end_user_visible:
                          type: boolean
                          description: end_user_visible
                        position:
                          type: string
                          description: position
                        ticket_field_ids:
                          type: array
                          items:
                            type: integer
                            format: int32
                          description: ticket_field_ids
                        active:
                          type: boolean
                          description: active
                        default:
                          type: boolean
                          description: default
                        in_all_brands:
                          type: boolean
                          description: in_all_brands
                        restricted_brand_ids:
                          type: array
                          items: {}
                          description: restricted_brand_ids
                        end_user_conditions:
                          type: array
                          items: {}
                          description: end_user_conditions
                        agent_conditions:
                          type: array
                          items: {}
                          description: agent_conditions
                        url:
                          type: string
                          description: url
                        name:
                          type: string
                          description: name
                        display_name:
                          type: string
                          description: display_name
                        created_at:
                          type: string
                          description: created_at
                        updated_at:
                          type: string
                          description: updated_at
                        deleted_at:
                          type: string
                          description: deleted_at
                    description: deleted_ticket_forms
                description: body
      summary: Get Ticket
      description: Get a specific ticket using ID
      operationId: GetTicket
      x-ms-visibility: important
      parameters:
        - name: ticket_id
          in: path
          required: true
          type: string
      x-ms-openai-data:
        openai-enabled: false
        operations:
          - operationId: GetTicket
            x-ms-require-user-confirmation: false
definitions: {}
parameters: {}
responses: {}
securityDefinitions:
  basic-auth:
    type: basic
security:
  - basic-auth: []
tags: []
     
  • stampcoin Profile Picture
    stampcoin 2,354 on 08 May 2025 at 17:01:07
    Cannot add custom connector to Power Apps
     
    Could you please confirm whether your custom connector includes any of the following?
    • Triggers (e.g., "When an item is created") instead of actions only ,it doesn't support  that the trigger within it, i think.
    • Swagger 2.0, at least minimum spec.
    • Missing host, basePath, schemes, or response definitions in the Swagger YAML
    • Dynamic schema extensions like x-ms-dynamic-schema/x-ms-dynamic-value, it won't work.
    This case may give you a lead.
     
     
     
     
     
  • CG-07052056-0 Profile Picture
    CG-07052056-0 20 on 08 May 2025 at 13:04:31
    Cannot add custom connector to Power Apps
    I have tested it in power automate. 
    It works fine, and returns the expected result.

    It cannot be added to power apps.

  • stampcoin Profile Picture
    stampcoin 2,354 on 08 May 2025 at 05:51:22
    Cannot add custom connector to Power Apps
    Have you tried in power automate ?
    does your connector have correct response ?

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