Asc Subscription Localization Agent Skill

asc subscription localization

Use this skill to bulk-create or bulk-update display names and, where supported,

descriptions for subscriptions, subscription groups, and in-app purchases across

all App Store Connect locales. This eliminates the tedious manual process of

clicking through each language in App Store Connect to set the same display

name.

Preconditions

• Auth configured (asc auth login or ASC_* env vars).
• Know your app ID (ASC_APP_ID or --app).
• Subscription groups and subscriptions already exist.

Choose the API scope first

API 4.4.1 adds discrete versions for IAPs, subscriptions, and subscription

groups. A version ID is different from its product, subscription, or group ID.

• Use asc ... versions localizations ... for all new localization work.
• Do not use the product- or group-scoped v1 localization commands. API 4.4.1

deprecates those resources, and the CLI now emits migration warnings for

their compatibility commands.

• Never pass a product, subscription, or group ID to a version-scoped command.

Resolve or create versions before localizing them:

asc iap versions list --iap-id "IAP_ID" --state PREPARE_FOR_SUBMISSION --paginate --output table
asc subscriptions versions list --subscription-id "SUB_ID" --state PREPARE_FOR_SUBMISSION --paginate --output table
asc subscriptions groups versions list --group-id "GROUP_ID" --state PREPARE_FOR_SUBMISSION --paginate --output table

Branch independently on each list result: zero matches means create, one means

reuse that version ID, and more than one means stop and require an explicit

version ID. Run each command below only for its zero-match branch:

# If and only if the IAP version list returned zero matches:
asc iap versions create --iap-id "IAP_ID" --output json
# If and only if the subscription version list returned zero matches:
asc subscriptions versions create --subscription-id "SUB_ID" --output json
# If and only if the group version list returned zero matches:
asc subscriptions groups versions create --group-id "GROUP_ID" --output json

None of the three version families has a version delete command. List and

reuse the single PREPARE_FOR_SUBMISSION version; create only for zero matches,

and stop for an explicit ID when multiple matches exist. Live parent deletion

did not cascade IAP or subscription versions, so do not assume parent deletion

cleans up versions created for testing.

Supported App Store Locales

These are the locales supported by App Store Connect for subscription and IAP localizations:

ar-SA, ca, cs, da, de-DE, el, en-AU, en-CA, en-GB, en-US,
es-ES, es-MX, fi, fr-CA, fr-FR, he, hi, hr, hu, id, it,
ja, ko, ms, nl-NL, no, pl, pt-BR, pt-PT, ro, ru, sk,
sv, th, tr, uk, vi, zh-Hans, zh-Hant

Workflow: Bulk-localize a subscription version (v2)

List existing localizations, create only missing locales, then verify:

asc subscriptions versions localizations list --version-id "VERSION_ID" --paginate --output table
asc subscriptions versions localizations create --version-id "VERSION_ID" --locale "LOCALE" --name "Display Name" --description "Description"
asc subscriptions versions localizations list --version-id "VERSION_ID" --paginate --output table

Updates distinguish omitted values, non-empty strings, and JSON null:

asc subscriptions versions localizations update --id "LOC_ID" --name "New Name" --description "Updated description"

Do not combine a value flag with its matching --clear-name or

--clear-description flag. The 4.4.1 schema permits JSON null, but Apple's

live service currently rejects both an empty --description and

--clear-description for subscription-version localizations because the

description must contain at least one character.

Creating a missing subscription-version localization therefore requires a

non-empty description. A display-name-only run may update the name of an

existing localization, but must not create a missing locale until the user

provides a non-empty locale-specific or shared fallback description.

Workflow: Bulk-localize a subscription group version (v2)

asc subscriptions groups versions localizations list --version-id "VERSION_ID" --paginate --output table
asc subscriptions groups versions localizations create --version-id "VERSION_ID" --locale "LOCALE" --name "Group Display Name" --custom-app-name "My App"
asc subscriptions groups versions localizations update --id "LOC_ID" --name "Updated Group Display Name" --custom-app-name "My App"
asc subscriptions groups versions localizations list --version-id "VERSION_ID" --paginate --output table

Clearing metadata is a separate, explicit opt-in operation. After confirming

that the user wants to remove an existing custom app name, run:

asc subscriptions groups versions localizations update --id "LOC_ID" --clear-custom-app-name

Do not include --clear-name or --clear-custom-app-name in the standard bulk

localization workflow. Use either flag only when JSON null is deliberately

intended; omitting the flag leaves that attribute unchanged.

Workflow: Bulk-localize an IAP version (v2)

asc iap versions localizations list --version-id "VERSION_ID" --paginate --output table
asc iap versions localizations create --version-id "VERSION_ID" --locale "LOCALE" --name "Display Name" --description "Description"
asc iap versions localizations update --localization-id "LOC_ID" --description "Updated description"
asc iap versions localizations list --version-id "VERSION_ID" --paginate --output table

Apple's live service also rejects empty descriptions and

--clear-description for IAP-version localizations even though the 4.4.1

schema permits JSON null. As with subscriptions, a display-name-only run may

update existing IAP localizations but must not create missing locales until a

non-empty description is available.

Bulk-localize all subscription versions in an app

For a full app with multiple subscription groups and subscriptions:

# 1. List groups and resolve each group's unique mutable version.
asc subscriptions groups list --app "APP_ID" --paginate --output json
asc subscriptions groups versions list --group-id "GROUP_ID" --state PREPARE_FOR_SUBMISSION --paginate --output json

# 2. Localize each group version.
asc subscriptions groups versions localizations list --version-id "GROUP_VERSION_ID" --paginate --output json
asc subscriptions groups versions localizations create --version-id "GROUP_VERSION_ID" --locale "LOCALE" --name "Group Display Name"

# 3. List subscriptions and resolve each subscription's unique mutable version.
asc subscriptions list --group-id "GROUP_ID" --paginate --output json
asc subscriptions versions list --subscription-id "SUB_ID" --state PREPARE_FOR_SUBMISSION --paginate --output json

# 4. Localize each subscription version.
asc subscriptions versions localizations list --version-id "SUBSCRIPTION_VERSION_ID" --paginate --output json
asc subscriptions versions localizations create --version-id "SUBSCRIPTION_VERSION_ID" --locale "LOCALE" --name "Display Name" --description "Description"

Apply the same zero/one/many rule to each version list: create a version for

zero matches, reuse the one match, and stop for an explicit ID when multiple

matches are returned.

Agent Behavior

• Use only version-scoped v2 resources for new localization work.
• Keep version IDs separate from product, subscription, and group IDs.
• Always list existing localizations first to avoid duplicate creation errors.
• Create a missing locale, update the resolved localization ID when existing

values differ, and do nothing when the existing values already match.

• When the user provides a single display name, use it for all locales (same name everywhere).
• When the user provides translated names per locale, use the locale-specific name for each.
• For subscription- and IAP-version localizations, require a non-empty

--description on every create. If the user supplies only display names,

update existing localizations by resolved ID, skip creates for missing

locales, and ask for locale-specific descriptions or one non-empty fallback

description before creating them.

• On updates to existing subscription- or IAP-version localizations, omit

--description unless the user supplied a new non-empty value; never infer an

empty value or clear it.

• Subscription-group-version localizations do not have a description field.

Create or update their names normally, with --custom-app-name only when the

user supplied that value.

• Use --output table for verification steps so the user can visually confirm.
• Use explicit --output json for intermediate automation steps; output

defaults are TTY-aware.

• After bulk writes, always run the list command to verify completeness.
• For apps with many subscriptions, process them sequentially per group to keep output readable.
• If a create or update call fails for a locale, log the locale and error, then

continue with the remaining locales. After the batch completes, report all

failures together so the user can address them.

Notes

• Subscription display names are what users see on the subscription management sheet and in purchase dialogs.
• Creating a localization for a locale that already exists will fail; list

first and update the resolved ID when a change is needed.

• There is no bulk API; each locale requires a separate create call.
• Use --paginate on list commands to ensure all existing localizations are returned.
• Use the asc-id-resolver skill if you only have app names instead of IDs.