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# Input validation made more accurate for create email campaigns API

**Route**:  [https://developers.sendinblue.com/reference#createemailcampaign-1](https://developers.sendinblue.com/reference#createemailcampaign-1)\
Following rule, apart from existing ones,  will also be followed for the validation of the request parameters from now on:

* If a field name is specified in the input, it will be validated against the correct value and type. If the value is found to be in invalid format, **invalid_parameter** error will be thrown. If the value is empty, **missing_paramter** error will be thrown.