Update Invites

important note the invite endpoint is changing on july 4th, 2026 with the release of dynamic registrant lists see here https //docs google com/document/d/13dpottgiv9abzecb44bkarwxel4wr6zran1qi 0wvs0/edit?usp=sharing for details { "tab" "examples", "url" "https //api brella io/api/integration/organizations/{organizationid}/events/{eventid}/invites/{inviteid}", "name" "update existing invite", "method" "patch", "request" { "pathparameters" \[ { "kind" "required", "name" "{organizationid}", "type" "number", "children" \[], "description" "the id of the brella organization you are trying to retrieve data from" }, { "kind" "required", "name" "{eventid}", "type" "number", "children" \[], "description" "the id of the brella event you are trying to retrieve data from" }, { "kind" "required", "name" "{inviteid}", "type" "number", "children" \[], "description" "the id of the invite you want to update" } ], "queryparameters" \[], "headerparameters" \[ { "kind" "required", "name" "brella api access token", "type" "string", "children" \[], "description" "your unique brella api key" }, { "kind" "required", "name" "accept", "type" "string", "children" \[], "description" "application/vnd brella v4+json" }, { "kind" "required", "name" "content type", "type" "string", "children" \[], "description" "application/json" } ], "bodydataparameters" \[], "formdataparameters" \[] }, "results" { "languages" \[ { "id" "psobomoj9uo00ibrqhmgp", "language" "200", "code" " \[\n {\n \\"data\\" {\n \\"id\\" \\"12017635\\",\n \\"type\\" \\"invite\\",\n \\"attributes\\" {\n \\"fill token\\" \\"gpqa0m\\",\n \\"external email\\" \\"test+invites\@brella io\\",\n \\"external id\\" \\"123test456\\",\n \\"external first name\\" \\"test\\",\n \\"external last name\\" \\"invites\\",\n \\"external company\\" \\"brella\\",\n \\"external title\\" \\"test event\\",\n \\"qr string\\" \\"brella invite id=12017635\&brella invite token=gpqa0m\\",\n \\"created at\\" \\"2026 07 06t07 50 36 437z\\",\n \\"updated at\\" \\"2026 07 06t08 01 05 285z\\",\n \\"ticket type list name\\" \\"sponsors (in person)\\",\n \\"seat count\\" 1,\n \\"free seat count\\" 1\n },\n \\"relationships\\" {\n \\"event\\" {\n \\"data\\" {\n \\"id\\" \\"8318\\",\n \\"type\\" \\"event\\"\n }\n },\n \\"ticket type list\\" {\n \\"data\\" {\n \\"id\\" \\"68637\\",\n \\"type\\" \\"registrant list\\"\n }\n },\n \\"ticket purchase\\" {\n \\"data\\" {\n \\"id\\" \\"53510cdf e095 4896 8842 7fa4beef160b\\",\n \\"type\\" \\"ticket purchase\\"\n }\n },\n \\"persona\\" {\n \\"data\\" {\n \\"id\\" \\"5056\\",\n \\"type\\" \\"persona\\"\n }\n },\n \\"function\\" {\n \\"data\\" {\n \\"id\\" \\"6891\\",\n \\"type\\" \\"function\\"\n }\n },\n \\"industry\\" {\n \\"data\\" {\n \\"id\\" \\"8945\\",\n \\"type\\" \\"industry\\"\n }\n },\n \\"seats\\" {\n \\"data\\" \[\n {\n \\"id\\" \\"12651467\\",\n \\"type\\" \\"seat\\"\n }\n ]\n },\n \\"free seats\\" {\n \\"data\\" \[\n {\n \\"id\\" \\"12651467\\",\n \\"type\\" \\"seat\\"\n }\n ]\n },\n \\"question responses\\" {\n \\"data\\" \[]\n },\n \\"custom fields\\" {\n \\"data\\" \[\n {\n \\"id\\" \\"3900419\\",\n \\"type\\" \\"custom field\\"\n },\n {\n \\"id\\" \\"3900420\\",\n \\"type\\" \\"custom field\\"\n }\n ]\n },\n \\"selected interests\\" {\n \\"data\\" \[\n {\n \\"id\\" \\"50666856\\",\n \\"type\\" \\"selected interest\\"\n },\n {\n \\"id\\" \\"50666857\\",\n \\"type\\" \\"selected interest\\"\n },\n {\n \\"id\\" \\"50666858\\",\n \\"type\\" \\"selected interest\\"\n },\n {\n \\"id\\" \\"50666859\\",\n \\"type\\" \\"selected interest\\"\n },\n {\n \\"id\\" \\"50666860\\",\n \\"type\\" \\"selected interest\\"\n },\n {\n \\"id\\" \\"50666861\\",\n \\"type\\" \\"selected interest\\"\n },\n {\n \\"id\\" \\"50666862\\",\n \\"type\\" \\"selected interest\\"\n }\n ]\n }\n }\n },\n \\"included\\" \[\n {\n \\"id\\" \\"12651467\\",\n \\"type\\" \\"seat\\",\n \\"attributes\\" {\n \\"token\\" \\"gpqa0m\\"\n },\n \\"relationships\\" {\n \\"attendee\\" {\n \\"data\\" null\n }\n }\n },\n {\n \\"id\\" \\"68637\\",\n \\"type\\" \\"registrant list\\",\n \\"attributes\\" {\n \\"name\\" \\"sponsors (in person)\\",\n \\"description\\" null,\n \\"display name\\" \\"sponsors (in person)\\",\n \\"list type\\" \\"ticket type\\",\n \\"attendance type\\" \\"in person\\",\n \\"is default\\" false,\n \\"position\\" null,\n \\"profile badge\\" null,\n \\"networking enabled\\" true,\n \\"lead scanning enabled\\" true,\n \\"qr code visible\\" true,\n \\"meeting requests outgoing\\" null,\n \\"meeting requests incoming\\" null,\n \\"max outgoing meeting requests\\" null,\n \\"max accepted meetings\\" null,\n \\"show invites in apps\\" true,\n \\"show invited registrants\\" true,\n \\"show booking system join url\\" true,\n \\"created at\\" \\"2026 07 04t04 17 21 421z\\",\n \\"updated at\\" \\"2026 07 04t04 17 21 421z\\",\n \\"old group id\\" 23377\n }\n },\n {\n \\"id\\" \\"3900419\\",\n \\"type\\" \\"custom field\\",\n \\"attributes\\" {\n \\"key\\" \\"dinner\\",\n \\"title\\" \\"dinner\\",\n \\"value\\" \\"yes\\",\n \\"values\\" \[\n \\"yes\\"\n ]\n }\n },\n {\n \\"id\\" \\"3900420\\",\n \\"type\\" \\"custom field\\",\n \\"attributes\\" {\n \\"key\\" \\"lunch\\",\n \\"title\\" \\"lunch\\",\n \\"value\\" null,\n \\"values\\" \[]\n }\n },\n {\n \\"id\\" \\"8318\\",\n \\"type\\" \\"event\\",\n \\"attributes\\" {\n \\"id\\" 8318,\n \\"name\\" \\"brella networking event\\",\n \\"location\\" \\"\\",\n \\"address\\" \\"\\",\n \\"start date\\" \\"2026 08 09\\",\n \\"end date\\" \\"2026 08 12\\",\n \\"past\\" false,\n \\"table nickname\\" \\"table\\",\n \\"infoarea photo url\\" null,\n \\"cover photo url\\" \\"https //brella assets brella io/uploads/event/cover photo/8318/a4d3cb6f76783 jpg\\",\n \\"logo large url\\" \\"https //brella assets brella io/uploads/event/logo large/8318/e9a22b36c3704 jpg\\",\n \\"logo small url\\" \\"https //brella assets brella io/uploads/event/logo small/8318/a71f7a10dd4be jpg\\",\n \\"uses interests\\" true,\n \\"uses timeslots\\" true,\n \\"uses tables\\" false,\n \\"uses sponsors\\" true,\n \\"uses speakers\\" true,\n \\"event type\\" \\"hybrid\\",\n \\"uses stream link\\" true,\n \\"uses meeting slots\\" true,\n \\"uses event chat\\" true,\n \\"uses timeslot chat\\" false,\n \\"uses wizard\\" false,\n \\"uses sponsor booth links\\" false,\n \\"uses ticketing\\" false,\n \\"uses checkout\\" true,\n \\"uses invoicing\\" false,\n \\"uses rsvp overlapping\\" true,\n \\"industry\\" \\"artificial intelligence\\",\n \\"city\\" \\"denver\\",\n \\"country\\" \\"united states\\",\n \\"region\\" \\"north america\\",\n \\"created at\\" \\"2024 08 06t09 30 14 514z\\",\n \\"updated at\\" \\"2026 06 09t13 42 48 219z\\",\n \\"content\\" null,\n \\"sponsors name\\" \\"partners\\",\n \\"primary color\\" null,\n \\"secondary color\\" null,\n \\"intent pair ids\\" null,\n \\"uses reception page\\" false,\n \\"launches at\\" null,\n \\"start time utc\\" \\"2026 08 09t06 00 00 000z\\",\n \\"end time utc\\" \\"2026 08 13t05 59 59 999z\\",\n \\"chat channel id\\" \\"event 8318\\",\n \\"slug\\" \\"amynetworkingevent\\",\n \\"time zone\\" \\"america/boise\\"\n },\n \\"relationships\\" {\n \\"tickets\\" {\n \\"data\\" \[]\n },\n \\"registrant lists\\" {\n \\"data\\" \[\n {\n \\"id\\" \\"68635\\",\n \\"type\\" \\"registrant list\\"\n },\n {\n \\"id\\" \\"68634\\",\n \\"type\\" \\"registrant list\\"\n },\n {\n \\"id\\" \\"68633\\",\n \\"type\\" \\"registrant list\\"\n },\n {\n \\"id\\" \\"68638\\",\n \\"type\\" \\"registrant list\\"\n },\n {\n \\"id\\" \\"68637\\",\n \\"type\\" \\"registrant list\\"\n },\n {\n \\"id\\" \\"68636\\",\n \\"type\\" \\"registrant list\\"\n },\n {\n \\"id\\" \\"68639\\",\n \\"type\\" \\"registrant list\\"\n }\n ]\n },\n \\"questions\\" {\n \\"data\\" \[]\n }\n }\n },\n {\n \\"id\\" \\"53510cdf e095 4896 8842 7fa4beef160b\\",\n \\"type\\" \\"ticket purchase\\",\n \\"attributes\\" {\n \\"purchasers email\\" \\"\\",\n \\"first name\\" \\"test\\",\n \\"last name\\" \\"invites\\",\n \\"status\\" \\"completed\\",\n \\"created at\\" \\"2026 07 06t07 50 37 050z\\",\n \\"updated at\\" \\"2026 07 06t07 50 37 199z\\",\n \\"purchase completed at\\" \\"2026 07 06t07 50 37 189z\\",\n \\"purchase type\\" \\"checkout\\",\n \\"purchasers phone\\" null,\n \\"tax id type\\" null,\n \\"tax id\\" null,\n \\"address line1\\" null,\n \\"address line2\\" null,\n \\"address postal code\\" null,\n \\"address city\\" null,\n \\"address state\\" null,\n \\"address country code\\" null,\n \\"stripe session id\\" null,\n \\"stripe error\\" null,\n \\"created from\\" \\"admin panel\\"\n },\n \\"relationships\\" {\n \\"event\\" {\n \\"data\\" {\n \\"id\\" \\"8318\\",\n \\"type\\" \\"event\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"5056\\",\n \\"type\\" \\"persona\\",\n \\"attributes\\" {\n \\"name\\" \\"solution provider\\",\n \\"position\\" 2\n }\n },\n {\n \\"id\\" \\"6891\\",\n \\"type\\" \\"function\\",\n \\"attributes\\" {\n \\"name\\" \\"business strategy / planning\\",\n \\"position\\" 1\n }\n },\n {\n \\"id\\" \\"8945\\",\n \\"type\\" \\"industry\\",\n \\"attributes\\" {\n \\"name\\" \\"technology and software development\\",\n \\"position\\" 1\n }\n },\n {\n \\"id\\" \\"679919\\",\n \\"type\\" \\"interest\\",\n \\"attributes\\" {\n \\"name\\" \\"bookkeeping\\",\n \\"position\\" 16,\n \\"event id\\" 8318\n },\n \\"relationships\\" {\n \\"children\\" {\n \\"data\\" \[]\n },\n \\"intent pairs\\" {\n \\"data\\" \[\n {\n \\"id\\" \\"1\\",\n \\"type\\" \\"intent pair\\"\n },\n {\n \\"id\\" \\"2\\",\n \\"type\\" \\"intent pair\\"\n },\n {\n \\"id\\" \\"4\\",\n \\"type\\" \\"intent pair\\"\n },\n {\n \\"id\\" \\"3\\",\n \\"type\\" \\"intent pair\\"\n }\n ]\n }\n }\n },\n {\n \\"id\\" \\"1\\",\n \\"type\\" \\"intent\\",\n \\"attributes\\" {\n \\"selection label\\" \\"network about this\\",\n \\"match label\\" \\"networker\\",\n \\"statistics label\\" \\"network\\",\n \\"profile label\\" \\"networking about\\",\n \\"position\\" 1\n },\n \\"relationships\\" {\n \\"pair\\" {\n \\"data\\" {\n \\"id\\" \\"1\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"50666856\\",\n \\"type\\" \\"selected interest\\",\n \\"relationships\\" {\n \\"selector\\" {\n \\"data\\" {\n \\"id\\" \\"12017635\\",\n \\"type\\" \\"registrant\\"\n }\n },\n \\"interest\\" {\n \\"data\\" {\n \\"id\\" \\"679919\\",\n \\"type\\" \\"interest\\"\n }\n },\n \\"intent\\" {\n \\"data\\" {\n \\"id\\" \\"1\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"2\\",\n \\"type\\" \\"intent\\",\n \\"attributes\\" {\n \\"selection label\\" \\"explore or buy\\",\n \\"match label\\" \\"prospect\\",\n \\"statistics label\\" \\"buy/explore\\",\n \\"profile label\\" \\"exploring getting or buying\\",\n \\"position\\" 2\n },\n \\"relationships\\" {\n \\"pair\\" {\n \\"data\\" {\n \\"id\\" \\"3\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"50666857\\",\n \\"type\\" \\"selected interest\\",\n \\"relationships\\" {\n \\"selector\\" {\n \\"data\\" {\n \\"id\\" \\"12017635\\",\n \\"type\\" \\"registrant\\"\n }\n },\n \\"interest\\" {\n \\"data\\" {\n \\"id\\" \\"679919\\",\n \\"type\\" \\"interest\\"\n }\n },\n \\"intent\\" {\n \\"data\\" {\n \\"id\\" \\"2\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"4\\",\n \\"type\\" \\"intent\\",\n \\"attributes\\" {\n \\"selection label\\" \\"find a job\\",\n \\"match label\\" \\"job seeker\\",\n \\"statistics label\\" \\"get a job\\",\n \\"profile label\\" \\"seeking a job in\\",\n \\"position\\" 4\n },\n \\"relationships\\" {\n \\"pair\\" {\n \\"data\\" {\n \\"id\\" \\"5\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"50666858\\",\n \\"type\\" \\"selected interest\\",\n \\"relationships\\" {\n \\"selector\\" {\n \\"data\\" {\n \\"id\\" \\"12017635\\",\n \\"type\\" \\"registrant\\"\n }\n },\n \\"interest\\" {\n \\"data\\" {\n \\"id\\" \\"679919\\",\n \\"type\\" \\"interest\\"\n }\n },\n \\"intent\\" {\n \\"data\\" {\n \\"id\\" \\"4\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"6\\",\n \\"type\\" \\"intent\\",\n \\"attributes\\" {\n \\"selection label\\" \\"get investment\\",\n \\"match label\\" \\"investee\\",\n \\"statistics label\\" \\"get investment\\",\n \\"profile label\\" \\"seeking investment for\\",\n \\"position\\" 7\n },\n \\"relationships\\" {\n \\"pair\\" {\n \\"data\\" {\n \\"id\\" \\"7\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"50666859\\",\n \\"type\\" \\"selected interest\\",\n \\"relationships\\" {\n \\"selector\\" {\n \\"data\\" {\n \\"id\\" \\"12017635\\",\n \\"type\\" \\"registrant\\"\n }\n },\n \\"interest\\" {\n \\"data\\" {\n \\"id\\" \\"679919\\",\n \\"type\\" \\"interest\\"\n }\n },\n \\"intent\\" {\n \\"data\\" {\n \\"id\\" \\"6\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"679924\\",\n \\"type\\" \\"interest\\",\n \\"attributes\\" {\n \\"name\\" \\"policy underwriting\\",\n \\"position\\" 17,\n \\"event id\\" 8318\n },\n \\"relationships\\" {\n \\"children\\" {\n \\"data\\" \[]\n },\n \\"intent pairs\\" {\n \\"data\\" \[\n {\n \\"id\\" \\"1\\",\n \\"type\\" \\"intent pair\\"\n },\n {\n \\"id\\" \\"3\\",\n \\"type\\" \\"intent pair\\"\n }\n ]\n }\n }\n },\n {\n \\"id\\" \\"50666860\\",\n \\"type\\" \\"selected interest\\",\n \\"relationships\\" {\n \\"selector\\" {\n \\"data\\" {\n \\"id\\" \\"12017635\\",\n \\"type\\" \\"registrant\\"\n }\n },\n \\"interest\\" {\n \\"data\\" {\n \\"id\\" \\"679924\\",\n \\"type\\" \\"interest\\"\n }\n },\n \\"intent\\" {\n \\"data\\" {\n \\"id\\" \\"1\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"50666861\\",\n \\"type\\" \\"selected interest\\",\n \\"relationships\\" {\n \\"selector\\" {\n \\"data\\" {\n \\"id\\" \\"12017635\\",\n \\"type\\" \\"registrant\\"\n }\n },\n \\"interest\\" {\n \\"data\\" {\n \\"id\\" \\"679924\\",\n \\"type\\" \\"interest\\"\n }\n },\n \\"intent\\" {\n \\"data\\" {\n \\"id\\" \\"4\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n },\n {\n \\"id\\" \\"679928\\",\n \\"type\\" \\"interest\\",\n \\"attributes\\" {\n \\"name\\" \\"tax accounting\\",\n \\"position\\" 18,\n \\"event id\\" 8318\n },\n \\"relationships\\" {\n \\"children\\" {\n \\"data\\" \[]\n },\n \\"intent pairs\\" {\n \\"data\\" \[\n {\n \\"id\\" \\"1\\",\n \\"type\\" \\"intent pair\\"\n }\n ]\n }\n }\n },\n {\n \\"id\\" \\"50666862\\",\n \\"type\\" \\"selected interest\\",\n \\"relationships\\" {\n \\"selector\\" {\n \\"data\\" {\n \\"id\\" \\"12017635\\",\n \\"type\\" \\"registrant\\"\n }\n },\n \\"interest\\" {\n \\"data\\" {\n \\"id\\" \\"679928\\",\n \\"type\\" \\"interest\\"\n }\n },\n \\"intent\\" {\n \\"data\\" {\n \\"id\\" \\"1\\",\n \\"type\\" \\"intent\\"\n }\n }\n }\n }\n ]\n }\n] ", "customlabel" "" } ], "selectedlanguageid" "psobomoj9uo00ibrqhmgp" }, "examples" { "languages" \[ { "id" "gnoqs qaa2ryi ob138yr", "language" "curl", "code" "curl location g request patch 'https //api brella io/api/integration/organizations/{organizationid}/events/{eventid}/invites/{inviteid}' \\\\\n header 'brella api access token string' \\\\\n header 'accept application/vnd brella v4+json' \\\\\n header 'content type application/json'\\\\\n data '{\n \\"event invite\\" {\n \\"external email\\" \\"{{random email}}\\",\n \\"external id\\" \\"{{random ext uuid}}\\",\n \\"external first name\\" \\"{{random first name}}\\",\n \\"external last name\\" \\"{{random last name}}\\",\n \\"external company\\" \\"{{random company}}\\",\n \\"external title\\" \\"{{random title}}\\",\n \\"external qr string\\" \\"{{random qr strings}}\\",\n \\"ticket type list id\\" \\"{{ticket type list id}}\\",\n \\"persona\\" \\"researcher\\",\n \\"industry\\" \\"health and wellness\\",\n \\"function\\" \\"development / engineering\\",\n \\"custom fields attributes\\" \[\n {\n \\"key\\" \\"{{random key 1}}\\", \n \\"value\\" \\"{{random value 1}}\\"\n },\n {\n \\"key\\" \\"{{random key 2}}\\", \n \\"value\\" \\"{{ random value 2}}\\"\n }\n ],\n \\"interest categories\\" \[\n {\n \\"name\\" \\"a mm category\\",\n \\"interests\\" \[\n {\n \\"name\\" \\"my first interest\\",\n \\"intent ids\\" \[1,2,4,6]\n },\n {\n \\"name\\" \\"my second interest\\",\n \\"intent ids\\" \[1,4]\n },\n {\n \\"name\\" \\"oooh another interest\\"\n }\n ]\n }\n ]\n },\n \\"import interest selections\\" true,\n \\"import identity selections\\" true\n}'", "customlabel" "" } ], "selectedlanguageid" "gnoqs qaa2ryi ob138yr" }, "description" "update an existing invite in an event", "currentnewparameter" { "label" "path parameter", "value" "pathparameters" }, "hastryitout" false, "autogeneratedanchorslug" "update existing invite", "legacyhash" "dzdjwf8rci qeqtp7mnrs" } request body { "event invite" { "external email" "{{random email}}", "external id" "{{random ext uuid}}", "external first name" "{{random first name}}", "external last name" "{{random last name}}", "seats" 1, "external company" "{{random company}}", "external title" "{{random title}}", "external qr string" "{{random qr strings}}", " ticket type list id" "{{ticket type list id}}", "persona" " {{random personna}} ", "industry" " {{random industry}} ", "function" " {{random function}} ", "custom fields attributes" \[ { "key" " {{ random key 1}}", "value" " {{ random value 1}}" }, { "key" " {{ random key 2}}", "value" "{{ random value 2}}" } ], "interest categories" \[ { "name" " {{random category}} ", "interests" \[ { "name" " {{random interest}} ", "intent ids" \[1,2,4,6] }, { "name" " {{random interest}} ", "intent ids" \[1,4] }, { "name" " {{random interest}} " } ] } ] }, "import interest selections" true, "import identity selections" true } } required attributes external email (string / supports accents and special characters) seats (number / see notes for more information) import interest selections these attributes by default are false however, if these are not set to true, any interests/ intents and identity data (personas, function, industry) won't get updated or created import identity selections these attributes by default are false however, if these are not set to true, any interests/ intents and identity data (personas, function, industry) won't get updated or created notes 01 while multi seat invites are supported (meaning that the same invite code / url can be used multiple times to allow different attendees to join the platform), we typically recommend that 1 ticket = 1 invite (so, passing the value 1 to seats ), especially if your event uses qr code scanning and / or 3rd party badge printing (eg xtag, ticket butler, noodle live etc ) 02 the ticket type list id (legacy version attendee group id ) attribute is used to map different ticket types to brella's ticket types list, which allows you to control networking privileges, session access privileges and more you can create as many ticket types list as needed in the admin panel of your event (event > people > lists > new list) the ticket type list id values for the created lists are visible in the admin panel or via /registrant list endpoint if a value is not specified in the request, the invite will be added to a default all registrants list in brella one registrant can only belong to one ticket type list in case the registrant needs to belong to multiple lists, you can utilize custom lists 03 matchmaking and identities prefilling there are two attributes, which need to be set to "true" import interest selections import identity selections if the interests/ identities don't exist in the matchmaking set up, the api call will create these interests and identities if you make an api call where the interests array or any of those parameters is empty, it will delete them from the invite it will never delete interests or identities from the event itself, since multiple attendees might be using these interests and identity data in the event if the parameters "interest categories" , "persona" , "industry" and "function" are not present in the request (i e you don't have these attributes at all), they won't be updated to specify intents for a specific mm interest, you need to use "intent ids" that correspond to the following intents 1 = networking 2,3 = trading 2 = exploring getting or buying 3 = offer or sell this 4,5 = recruitment 4 = get a job in this 5 = offer a job in this 6,7 = investment 6 = get investment in this 7 = invest in this 8,9 = mentoring 8 = find a mentor 9 = be a mentor if you want to include both intents within a pair, you need to add both " intent ids " in the array if you don't specify the " intent ids " array inside the interest object, all intents will get selected by default 04 custom fields attributes in order to pass this value through the api, you first need to create the custom field under custom content > custom fields the field name can be any value that is easy for you to recognize the field key will be the parameter in your api body request the custom fields need to be linked to registrants more instructions here https //help organizers brella io/en/articles/323077 creating a custom field https //help organizers brella io/en/articles/323077 creating a custom field 05 external qr strings external qr string this field allows passing qr strings from a third party platform once this value is sent via the api, the brella app would then show this external qr code (instead of the typical brella qr strings), and brella would be able to use that for lead scanning as well