Bulk topic subscription via CSVAsk AIpost https://api.indigitall.com/v2/sms/topic/subscribe/csvBulk subscribe the contacts of an application from a CSV file to the specified topicQuery ParamsapplicationIdintegerrequiredApplication IDtopicIdintegerrequiredTopic IDresetbooleanIf true, the topic is reset (i.e. all contacts are unsubscribed from the topic) before the bulk subscriptiontruefalseBody ParamscsvfilerequiredA .csv file with a list of contacts. The columns that are read: countryCode: must be an integer, e.g. 34. Mandatory. phone: e.g. 666112233. Mandatory. Do not include BOM. Example: countryCode,phone 34,666112233 34,666112244 34,666112255 ....Responses 200Success defaultError 5XX, 4XXUpdated 15 days ago