Changes to Initiate a payment

the state request property's minLength was increased from 0 to 1

the redirect_uri request property type changed from no type to string, and format from no format to url

the state request property type changed from no type to string

added subschema #1 subschema #2 subschema #3 subschema #4 subschema #5 to the challenge response property oneOf list for the response status 201

the error response's property type changed from no type to object for status 201

the id response's property type changed from no type to string, and format from no format to UUID for status 201

the state request property's maxLength was set to 1024

added the optional property error/code to the response with the 201 status

added the optional property error/description to the response with the 201 status

added the optional property error/group to the response with the 201 status

added the optional property error/message to the response with the 201 status

added the optional property error/name to the response with the 201 status