# Get a merchant's exclusive referral link

Debugging Tools

Interface should be called on the server side, not in the front end (Weixin Mini Program, web pages, APP, etc.) directly called, specific reference interface call guide

Interface name: invoicebizgetselecttitleurl

This interface is used to obtain a merchant's proprietary QR code link for the user to choose to raise their head. You need to turn the link into a QR code display

# 1. How to call

# HTTPS calls

POST https://api.weixin.qq.com/card/invoice/biz/getselecttitleurl?access_token=ACCESS_TOKEN

# Cloud Calls

This interface does not support cloud calls

# Third party invocation

This interface supports Third Party Platform generation business call.
The permission set to which this interface belongs is: 26
When a service provider is authorized by one of the permissions set, it can call on behalf of the merchant by using authorizer_access_token , which can be viewed in the third-party call documentation.

# 2. Request parameters

# Query parameters`Query String parameters`

Parameter Name	type	Required to fill in	Introductions
access_token	string	yes	Interface invocation credentials, using access_token , authorizer_access_token

# Request Body`Request Payload`

Parameter Name	type	Required to fill in	Introductions
attach	string	no	Additional field, which is issued to the merchant when the user submits an invoice
biz_name	string	no	Display the name of the business to the user

# 3. Return Parameters

# `Response Payload`

Parameter Name	type	Introductions
errcode	number	Error code
errmsg	string	Error Description
url	string	Exclusive Head Up Link

# 4. Note

There are no special considerations for this interface

# 5. Code examples

Example Requests

{
  "attach":""
}

Return an example

{
  "url":"https",
  "errcode" : 0,
  "errmsg" : "ok"
}

# 6. Error code

The following is a list of error codes for this interface, other error codes can refer to General error codes

Error code	Error Description	Solutions
40001	invalid credential access_token isinvalid or not latest	access_token Invalid or not recently acquired access_token, please confirm the validity of the access_token

# 7. Scope of application

How this interface can be invoked under different account types:

Official Account	Service Account	Mobile App
✔	✔	✔

✔: The account can call this interface
Other account types that are not expressly stated may not be called on this interface without special instructions;