Is the App ID the same as the Bundle ID?

Almost. The Bundle ID is the reverse-DNS string you type in Xcode, such as com.company.app. The App ID on developer.apple.com is the Team ID prefix plus that Bundle ID, so A1B2C3D4E5.com.company.app. Marketing tools and App Store links use a third thing, the numeric App Store ID, which is unrelated to both.

What is the difference between the Apple ID of an app and my Apple ID?

Your Apple ID is the email address you sign in with. The Apple ID of an app is a ten-digit number App Store Connect assigns under App Information, the same digits that follow id in the app's store link. Apple reused the name, and the two have nothing in common.

Which identifiers does the App Store Connect API need?

Three for authentication: the Issuer ID (a UUID), the Key ID (ten characters) and the .p8 private key file. Sales and finance report endpoints add the eight-digit Vendor Number. The Team ID and Bundle ID play no part in API calls.

FunnelHound / Guides / Apple identifiers

Every Apple identifier, explained: which ID the form actually wants

By Emin, indie iOS developer building FunnelHound · Published 3 Nov 2026

Apple runs two identifier families on two websites. developer.apple.com owns the signing family: Team ID, Bundle ID, App ID, APNs Key ID. App Store Connect owns the store family: App Store ID, SKU, Issuer ID, API Key ID, Vendor Number, Provider ID. Work out which family a form belongs to and the shape of the value tells you the rest.

Two sites, two families. A form belongs to one of them, and so does every value you could paste into it.

The table

Identifier	Shape	Identifies	Where to read it	Who asks for it
Team ID	10 letters and digits	Your developer account as a signing authority	developer.apple.com → Membership details; Xcode Team menu	Universal links, push providers, entitlements, Sign in with Apple
Bundle ID	Reverse DNS, com.company.app	One app binary, forever	Xcode target → General; App Store Connect → App Information	Everything that identifies the app on a device
App ID	Team ID + Bundle ID	The registered pairing of team and bundle, with capabilities	developer.apple.com → Identifiers	Provisioning profiles, capability toggles
APNs Key ID	10 letters and digits	One push notification key	developer.apple.com → Keys	Push providers, with the Team ID and the APNs .p8
App Store ID (Apple ID of the app)	10 digits	One app's store listing	App Store Connect → App Information; the id in any store link	Attribution SDKs, review prompts, SKAdNetwork, smart banners
SKU	Any string you chose	One app, your own bookkeeping label	App Store Connect → App Information	Sales reports, nothing else
Issuer ID	UUID with hyphens	Your team, for the App Store Connect API	Users and Access → Integrations → App Store Connect API	Every API client, fastlane, CI, FunnelHound
API Key ID	10 letters and digits	One App Store Connect API key	Same page, Team Keys table	Same clients, next to the Issuer ID
Vendor Number	8 digits, starts with 8	Your legal reporting entity	Payments and Financial Reports	Sales and finance report calls, revenue tools
Provider ID (short name)	Short string or number	Your account as a content provider	Transporter, iTMSTransporter provider list	Transporter uploads when you belong to several teams

Two names are missing on purpose. Your Apple ID is the email you sign in with; it is an account, not an identifier a form wants. And Developer ID is not an ID at all but the name of the Mac certificate type used for apps shipped outside the Mac App Store.

Identify a value by its shape

Most mix-ups happen between values that look alike. Read the shape before the label:

Four shapes are unambiguous. The ten-character shape is shared by three IDs, and only the page you copied it from can break the tie.

Hyphenated UUID: Issuer ID. Nothing else in either family has that shape.
Eight digits: Vendor Number. Ten digits: App Store ID. Count them.
Dots: Bundle ID. With a ten-character prefix and a dot, you are looking at a full App ID.
Ten mixed characters: Team ID, API Key ID or APNs Key ID. The page it came from decides. From Membership details, it is the team. From the Team Keys table in App Store Connect, it is an API key. From Keys on developer.apple.com, it is a push key.

Which trio each job wants

App Store Connect API (reports, analytics, TestFlight automation, FunnelHound): Issuer ID + API Key ID + the API .p8. Vendor Number joins for sales and finance reports.
Push notifications, token based: Team ID + APNs Key ID + the APNs .p8. Different key, different site, different ID next to it.
Universal links and associated domains: Team ID + Bundle ID, written as one string in the apple-app-site-association file.
Attribution and review SDKs: App Store ID, sometimes the Bundle ID as well.
Transporter uploads: Bundle ID in the package, plus the Provider short name if your Apple ID belongs to several teams.
Sales reports and bookkeeping: Vendor Number, with SKU as the per-app label inside the file.

The first and second rows cause the most trouble because both involve a .p8 file and a ten-character key ID. The giveaway is the third value: a UUID means the App Store Connect family, a Team ID means push.

Why this matters for your funnel numbers

Analytics tools ask for the store family and nothing else. FunnelHound, for instance, takes the Issuer ID, Key ID and .p8 to read impressions, page views, installs and deletions, and the Vendor Number to read proceeds. Signing identifiers never enter the picture, which is a handy sanity check: a funnel tool asking for your Team ID is asking for the wrong family.

Three store IDs in, the whole funnel out

Issuer ID, Key ID, one .p8 import: FunnelHound signs the requests on your iPhone and draws impressions through purchases for every app on the account. No Team ID, no Bundle ID, no server in between.

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Data notes: locations checked against developer.apple.com and App Store Connect as of 2026. All example values are placeholders except 6793297146, which is FunnelHound's own App Store ID. The App ID prefix equals the Team ID on current accounts; a few very old accounts carry legacy prefixes.