E01021 — DuplicateTagName
Tag names must be unique within a single send.
- HTTP status:
422 - Type:
validation_error - Name:
DuplicateTagName
What to do
The request body parsed, but one or more values are invalid. The message says what is wrong, and param names the field when there is one. When the response has a details array, each entry names one failing field in param, as a dotted path like to[0].email or data.plan, with a short reason in message. Fix the named fields and retry.
Related
- E01xxx — Infrastructure: every code in this range
- Errors: the full wire contract, status mapping, and error catalog
- Error handling: branching on
typeandcode, validation details, andvendor_code
Ressources associées
Poursuivez avec la documentation, les guides et les exemples sur ce sujet.