Error 'Sequence contains no matching element'

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New Member

Error 'Sequence contains no matching element'

I am getting this error message when importing contacts via the API. Can anyone enlighten me as to what it means?

1 REPLY 1
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Moderator

Re: Error 'Sequence contains no matching element'

Hello Graham,

 

Thank you for reaching out to Constant Contact's API Support.

 

This error message is referring to a missing part of the data. The error can be created for multiple reasons. Could you please indicate which endpoint you are submitting to and the data payload you are sending. Please remove any sensitive data and replace with xxx such as your API key or email address.


Regards,
Jimmy D.
Tier II API Support Engineer
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