Zendesk allows a maximum of 10,000 characters in the allowlist or blocklist fields. Exceeding this limit will result in an error.
If you're managing your email lists and encounter issues, it's important to keep track of the total number of characters. To avoid errors, ensure that your combined entries do not exceed the 10,000 character limit. For more guidance, check out theSetting up your blocklist and allowlistarticle.
The 'Failed to update customer settings' error in Zendesk occurs when you exceed the character limit for the allowlist or blocklist. You can only enter up to 10,000 characters in these fields. If you're trying to add a new email and encounter this…
To resolve the 'Failed to update customer settings' error, ensure your allowlist or blocklist does not exceed 10,000 characters. If you receive this error after adding a new email, it's likely due to exceeding the character limit. You can fix this…