Tweet characters limit

[ArturSocialboards]

Hello I have the following problem.
Our company provides a platform for effective support system.
Using our system clients fetch data from different socialmedias and answer to client requests.

I am using the following api to send tweets in reply to clients tweets “POST statuses/update API”
Tweet size limit in api now is 280 characters and I need to add user mentions to “status” field and text limit is 280 minus length of mentions.
But on Twitter website you can select to mention or not particular person in discussion and it is not counted in text. As I understand it goes directly to metadata of tweet. Is there any opportunity to do the same using the api? So that all mentions will be not included in the text and the limit of 280 characters of the text will not be reached?

[b_lw]

Hey @ArturSocialboards - Yes, you can reply to someone’s tweet via the API without having the leading @mentions counting against the character limit.

Add the following parameters to your POST statuses/update API call:

• in_reply_to_status_id — must be set to the tweet you’re replying to. Note that if the tweet no longer exists it won’t work.
• auto_populate_reply_metadata — when set to true it will automatically mention all users you’re replying to and mentions won’t count against the character limit. All 280 characters can be used for the tweet copy.
• exclude_reply_user_ids — (Optional) — By default, all users mentioned in the tweet you’re replying to will be added to your reply. You can exclude them by passing a comma-separated list of user ids to this parameter so you decide who will be notified of the reply.

Hope that helps!