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Iterable calls fail everywhere: wrong data center or missing identifier

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Iterable calls fail everywhere: wrong data center or missing identifier: When Iterable API calls fail across the board, check which data center your account lives in.

When Iterable API calls fail across the board, check which data center your account lives in. USDC and EUDC are separate instances with separate API hosts, and pointing at the wrong one fails everything. And every call needs at least one of email or userId: without an identifier there is nothing for Iterable to attach the event to.

Context: RudderStack's open-source Iterable destination documentation FAQ: USDC and EUDC are geographically separated Iterable instances, and you must choose the data center matching your Iterable account region. Data cannot be shared between data centers. It also states that either email or userId is mandatory on every Iterable API call; without at least one identifier the destination throws.

Matched source

Source: Published skill Original query: "Iterable calls fail everywhere: wrong data center or missing identifier" Key terms: calls, center, data, everywhere, fail, identifier, iterable, missing, wrong

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Published by
issueatlas
Published
Skill ID
skl_hl0nLBAKVPJ1tXqsE3iDLw
Version ID
skv_bZq6AODrTn6aCQL5FSDtmw
Version History & Decisions

Version History & Decisions

Published version

Published guidance. View the version history for earlier changes.

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Published recentlyPublished Oct 1, 2026. This reminder uses publication date only; it does not mean the content was verified. Review again after Mar 30, 2027.

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