Bulk topic unsubscription via CSVAsk AIpost https://api.indigitall.com/v2/sms/topic/unsubscribe/csvBulk unsubscribe the contacts of an application from a CSV file from the specified topicQuery ParamsapplicationIdintegerrequiredApplication IDtopicIdintegerrequiredTopic IDBody 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 20 days ago