First_name, last_name becomes blank on adding custom fields V3 API

[edivodev]

Hi There,

We are trying to update custom fields for existing contacts

Expected behavior: Just update custom fields

Problem: when remaining fields are not passed example first_name, last_name they become blank

Url: https://api.cc.email/v3/contacts/3f426c9a-0518-11ea-b1b6-d4ae5292c36f

Payload: {"email_address":{"address":"developer@edivo.io"},"update_source":"Account","custom_fields":[{"custom_field_id":"5c7df5ec-305e-11ea-9b52-d4ae527547e4","value":"https:\/\/www.google.com"}]}

Before Updating:

{"id":"3f426c9a-0518-11ea-b1b6-d4ae5292c36f","email":"developer@edivo.io","first_name":Developer,"last_name":Edivo,"custom_fields":[]}

After Updating:

{"id":"3f426c9a-0518-11ea-b1b6-d4ae5292c36f","email":"arun@sociosquares.com","first_name":null,"last_name":null,"custom_fields":[{"custom_field_id":"5c7df5ec-305e-11ea-9b52-d4ae527547e4","value":"https:\/\/www.google.com}]}

[Jimmy_D]

Hello @edivodev,

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

We do have this mentioned on the API Reference page for making a PUT to a contact. It is in the paragraph at the top of that section. However; I do think we can do a better job of pointing this out and I'll work with our website/documentation folks to see what we can do about that.

https://v3.developer.constantcontact.com/api_reference/index.html#!/Contacts/putContact

Basically if it is not a sub-resource and the field is not included it will be set to a null value.