Accent characters are not showing in constant contact

0 Votes

When I try to add a user in constant contact using v3 api the accent characters are not saved and is replaced with some extra text.

For example 

First name is GÒKÜL and last name is NÁTH. But in constant contact it shows as Gu00d2Ku00dcL and Nu00c1TH respectively. Also if street address contain any accent characters it is won't save any data.


How can I fix this. I want to show the data as original. Please help me to find a solution..

0 Votes

Hi @user245131,


It looks like the characters are being converted due to the character set not being supported. Please keep in mind that we support 8-bit character sets and the accents in the example you gave appear to have come from a language that uses a 16-bit character set; which is also sometimes referred to as Unicode.


Can you confirm what language and/or character set you are attempting to use?

Jimmy D.
Tier II API Support Engineer
Campaign Collaborator
0 Votes

This CC support reply is dated 2020. It's now May, 2024; does CC support 16-bit character sets?

I've had problems uploading email lists with Spanish as well as Portuguese characters. Those customers like hearing from us and receiving our enewsletters, when we used to use Mailchimp.


Hello BeccaE,


Thank you for reaching out to Constant Contact API Developer Support. My team is here to assist outside software developers with questions about building into Constant Contact's API.


Accented and foreign language alphabet characters such as (  â, Č  č, É  é, Ģ  ģ, Ñ  ñ, Ø  ø, Ü  ü, etc.) can be used in names, company names, and physical addresses. They just can’t be used in email addresses. Below I’m including a detailed support article on using special characters in email addresses.


Prevent file import errors caused by special characters or spaces in an email address:


Please have a look and let us know if you have any other questions!



John B.
API Support Specialist
Did I answer your question? If so, please mark my post as an "Accepted Solution" by clicking the Accept as Solution button in the bottom right hand corner of this post.
Campaign Collaborator
0 Votes

Thank you. Part of the technical obstacles was special characters; the other part was Excel formulas vs copying the column, pasting as text, and saving as a CSV for upload to CC. :grinning:

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