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Data Instrumentation

Learn, ask questions, or help others with sending data and extracting data from Amplitude.

  • 1,695 Topics
  • 4,132 Replies
1692 Topics
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Conversationalist
StephaneConversationalist
asked in Data Instrumentation
Getting a 'missing_event' response on identify API v2

Hi,Seems like the API https://api2.amplitude.com/identify is broken. I tried sending a JSON payload using https://api2.amplitude.com/identify, but I keep getting a very vague error message: HTTP 400 missing_event.I am sending the call using POST with a Conten-Type of “application/json”.I have tried a few different JSON Payload: {    "api_key": "MY API KEY",    "identification": [{ "user_id": "b2d0dc3e-7ec4-48ad-bdbf-30723d461067", "user_properties":{"province":"ON"}}]}{    "api_key": "MY API KEY",    "identification": "[{\"user_id\":\"b2d0dc3e-7ec4-48ad-bdbf-30723d461067\", \"user_properties\":{\"$set\": {\"province\":\"ON\"}}}]"}I also tried{    "api_key": "MY API KEY",    "identification": "[{\"user_id\":\"b2d0dc3e-7ec4-48ad-bdbf-30723d461067\", \"user_properties\":{\"province\":\"ON\"}}]"}I also tried using Postman. Each time I get a HTTP 400 missing_event.Could the API be improved so that we get a detailed error message also.Thank you

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Conversationalist
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wandernetoNew Member
posted in Data Instrumentation
Getting error missing_api_key_and_write_key

I’m trying to call /identify endpoint but I’m getting missing_api_key_and_write_key error. I’m passing the api-key in the request body, like the example in postman: Have anyone experienced this error?Thanks in advance 

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Conversationalist
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rishindoshiNew Member
asked in Data Instrumentation
"missing_event" error on request to identify API

Hey!I’m attempting to submit a post request via python to the Identify API, but I keep getting back a 400 “missing_event” error. My request looks like:  IDENTIFY_ENDPOINT = 'https://api2.amplitude.com/identify' data = { 'api_key': API_KEY, 'identification': [{ 'user_id': 'user_id', 'user_properties': { 'exp_group': 'control' } }] } res = post(IDENTIFY_ENDPOINT, headers={}, json=data) I’ve seen other threads about a similar topic on this forum, but no helpful solutions from them. Thanks in advance!

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Conversationalist
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pachung121New Member
asked in Data Instrumentation
s3 Converter Configuration Reference

I’m trying to import events via parquet files on s3. Trying to keep thing super simple but still having issues:Should I be able to see a preview here? It must be doing some parsing because the config converter can identify the columns:Given the 5 columns, I’m using the following conversion but getting errors for the files:{ "converterConfig": { "fileType": "parquet", "compressionType": "none", "convertToAmplitudeFunc": { "event_type": "type", "ts": "timestamp", "profile_id": "profileId", "device_id": "deviceId", "kafka_ts": "kafka_timestamp" } }, "keyValidatorConfig": { "filterPattern": ".*\\.parquet" }}What am I missing/misunderstanding? I also have error logs but I’m having trouble following what they mean.

4372
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yalluriumNew Member
asked in Data Instrumentation
Google Play Data Safety

Hello,Given Google’s new Data Safety requirements, is there a guide for this specifically for apps using Amplitude?I’ve had to go over the existing docs carefully and I think I know what I have to “tick” for the data Amplitude collects, but it would be great to be 100% certain about my choices.RevenueCat has a guide here: https://docs.revenuecat.com/docs/google-plays-data-safety which I found really helpful. It would be really nice to have an Amplitude equivalent.Thanks in advance,Christos

9905
JessicaWade
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Well-Versed
pawanWell-Versed
asked in Data Instrumentation
If event sent without user_id can later set a user id ?

if the event is sent with no userid and later(for further events) we want to set userid for that event  can we do that..?

6251
Nehita I.
Team Member
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dexterrenickNew Member
asked in Data Instrumentation
Start Session and End Session Events not firing

I created a start session and end session test to run on my iOS application, but the events are not firing. I’ve read what qualifies as a started/ended session, and the criteria is being met; however, those events will not fire at all. I have other tracking running on my application that works perfectly fine, but I can’t seem to figure out why it won’t for start session. If anyone knows why this may be happening or can think of a work around, that would be fantastic. Thanks!

9023
Yuanyuan Zhang
Team Member
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KhoaNew Member
posted in Data Instrumentation
404 Client Error: Not Found for url: https://amplitude.com/api/2/export

Today I persistently getrequests.exceptions.HTTPError: 404 Client Error: Not Found for url: https://amplitude.com/api/2/export?start=20220816T12&end=20220816T19i.e. was able to communicate with a given server, but the server could not find what was requestedThis happened once on 1:25PM 08/15 but was successfully retried, then occurs persistently today at 1:26AM 08/17 and 7:26PM 08/16 UTC time.Could anyone please help me understand why this happens?

3411
Denis Holmes
Team Member
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dvarnauNew Member
asked in Data Instrumentation
Get user properties in Javascript SDK

Is it possible to get user properties or just set them? I’m currently using `Identify().append()` to add Optimizely experiment IDs to an `experiments` property, but if a user visits the same page, that experiment is added to the array again. I’m trying to figure out how I can avoid duplicating items in the array.

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Team Member
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Experienced
Cortney KetchumExperienced
asked in Data Instrumentation
Copy and Paste Event Properties

I’m trying to create a chart based on a list of users or a list of IPs. When I try and paste the copied list of IPs and or user names it just says (freeform) it won’t identify the users separately to select them, which in turn causes me to have to type them in one by one. In another tool I use, this is possible, but it doesn’t seem to be within Amplitude. see pics  

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Experienced
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Pablo1New Member
asked in Data Instrumentation
Issue with the average session length

Hello, We’ve released the new app build on Android using the native Google Play staged release  functionality (50\50 split release). Unfortunately, we see that the new build’s average session length has dropped by ~20-25%: https://prnt.sc/Pc6imrI6htuJ . We can’t understand how could this happen: the new build doesn’t have bugs or new features that could’ve dropped the session length so much. The most significant change we did is we’ve deleted lots of unused custom Amplitude events. Tell me, please, have you ever experienced anything like that? Maybe you have any thoughts\ideas?

4282
Product Release Team
Team Member
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Helpful Hero
OmrikoHelpful Hero
asked in Data Instrumentation
DAU/MAU Chart

Hi community, I’m trying to create something like the attached pictureis it as simple as looking at unique users group by week?trying tp create something like this where i assume its a rolling period? 

28718
Saish Redkar
Expert
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kim.giNew Member
asked in Data Instrumentation
Renaming events

 Hello hello,I'm trying to update my tracking plan and to rename some events in my data plan :I've renamed events in the Data Govern section from Amplitude (“Event A” renamed to “Event B”) Our developers have then updated the event name in the Tracking plan on the back-end (“Event A” renamed to “Event B”)But, it creates a new event "Event B", instead of sending directly the data to the Event B (previously named Event A) on Amplitude. Meaning we have now two events “Event B”.By the way, we’re using Segment, I don’t know if this could have an impact.Any idea how to solve this?Thanks  🙏

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timothy-permutable
Super Helper
timothy-permutableSuper Helper
asked in Data Instrumentation
Best way to capture user age

Has anyone tried tracking user age before? I have a case now where it’s relevant to capture and update their current age, and I’m wondering whether to do something clever like below, or just to brute force it and update their “current age” user property every day or session. Age User Property Set both their birthdate and age (at time of submission) as user properties Configure derived property in Amplitude for current age (i.e. today - birthday)

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timothy-permutable
Super Helper
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vignesh09New Member
asked in Data Instrumentation
How to get event name through REST API for existing chart in segmentation

I have tried to get pass the event types for segmentation API dynamically, is there any way we could pass the event types for segmentation dynamically?

4052
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kirileNew Member
asked in Data Instrumentation
Is it possible to change an email in account settings?

I want to change email of my account but it disabled in edit mode. Maybe support team is able change it?

3762
K
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eimantinNew Member
asked in Data Instrumentation
How many unique users does change on one entity?

Hi, hope this is the right thread to ask this..I spent half of the day experimenting and thinking how to achieve chart that I want - unsuccessfully..I want to know: How many unique users change same entities in our system.In my domain we have entity (Campaign). It’s accessible for multiple users.Campaign has an ID (unique per campaign), I get ID with with Save event in event props. Next to that I have user info as well like Profile Name/Id etc.. Now the ultimate goal is to know how data is distributed - how many people usually Edit and Save single campaign.So eventually to know how many people usually work on single entity during entity lifecycle.Currently I have this view by simply:Go to Event Segmentation Select Save event Select FrequencyAnd I assume it already shows split of how many times Campaigns are edited (but still I’m not sure if this is true since adding where and selecting all available IDs changes my results) Anyway, any suggestion how I should build my query so I see sim

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beaconprojects4New Member
asked in Data Instrumentation
Empty chart but data seen in User Lookup

Hi, just integrated Amplitude iOS.I don’t see data in Charts but I see them in User Lookup.Am I missing something?  But empty here 

3751
munroek-amp
Team Member
Alina_D
Alina_DNew Member
asked in Data Instrumentation
How to hide or remove unnecessary events?

Good afternoon!We happen to have too many events that clog up the user path and it's hard for me to keep track of it. How can I hide unnecessary events from the output without having to change the program code?I tried to change Visability of events, but it didn’t help. I keep seeing them in User Lookup and in the Amplitude events list on Charts.

7754
belinda.chiu
Team Member
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Well-Versed
pawanWell-Versed
asked in Data Instrumentation
How to calculate What is the time difference between  each login for every customer

I want to get data for what is the time difference between  each login for every customer using which graph i can generate this.. 

4836
Jeremie Gluckman
Team Member
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bakerkNew Member
asked in Data Instrumentation
Firefox triggering multiple alerts instead of one

Hi!We are using amplitude to track usage of certain actions within our web app. When clicking some events we see in the live tracking that they trigger ~5 times instead of the 1 we expect. We dont see this behaviour when we run the app in Chrome, only in Firefox. Does anyone have any ideas on what could be happening?Thanks :) 

3651
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Team Member
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helenNew Member
asked in Data Instrumentation
Which Features are available in EU Data Centre

Hello!We are using a Trial Enterprise Plan, currently using US Data Centres. We are contemplating the option to use EU Data Centres instead - but wanted to know what features are currently supported? For example - are Amplitude Analytics, Experiment and Data all supported? And what would be missing if we were to switch?Many thanks for your help!All the best,Helen

5303
Nehita I.
Team Member
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b100New Member
asked in Data Instrumentation
Amplitude doesn't work

I added amplitude event tracking calls next to all my mixpanel event tracking calls in my nodeJS serverless backend, but no events are showing up, and I’m not sure how to fix it as no errors are thrown. Here is the event code in JS: amplitudeClient.logEvent({              event_type: 'EVENT NAME',              user_id: (60 character long UUIDV4 string),              ip: '127.0.0.1',              event_properties: {                prop1: prop1,                prop2: prop2              }            }); 😂

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Novice
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Well-Versed
pawanWell-Versed
asked in Data Instrumentation
How many unique events triggered through in a single given session

how to measure How many unique events triggered  through in a single given session           

5445
Saish Redkar
Expert
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nico_wakatoonNew Member
asked in Data Instrumentation
City and IP visible in events in spite of coppa activated

Hi we’re developing an app for Kids, I have activated coppa but on the dashboard but it seems like both IP address and and cIty are tracked  I am using the Unity plugin but when debugged it in the ios Code and this is the json event that is sent:{ "session_id": 1658098907454, "user_properties": {}, "language": "French", "event_type": "Wakatest Init", "sequence_number": 8, "country": "France", "api_properties": { "tracking_options": { "lat_lng": false, "city": false, "ip_address": false } }, "device_id": "f12c4d30-468d-4840-88b5-0566840e0330", "event_properties": {}, "uuid": "F1752310-C59B-4CD8-921A-0C55D8924B99", "device_manufacturer": "Apple", "version_name": "4.0.907", "library": { "name": "amplitude-unity", "version": "2.4.0" }, "os_name": "ios", "platform": "iOS", "event

4682
Nehita I.
Team Member

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