New colleague has been with the company a few weeks.
We have a shared '[email protected]' email address for new clients to contact us via website plus each have our own name@ email addresses too.
We all check the office@email address and respond to incoming queries.
Colleague had answered a query with a standard response. This may lead to new business on which colleague, although not more senior, would take the lead. Her response included the offer of a follow-up conversation. Client responded quickly saying he would like to have conversation ASAP and here is phone number, except phone no is missing.
I log in 40 mins later, see his email, reply to him, politely letting him know phone number is missing and letting him know she would call ASAP once we had it. I then send internal message to colleague letting her know he wanted to have the conversation urgently in case she didn't check back again that day.
No response from colleague thanking me for letting her know but I shrugged that off.
Just found out, purely by chance, that colleague has emailed our boss, complaining that I had interrupted her communications with client and made us look unprofessional because two different people had responded to him and she doesn't expect it to happen again.
She hasn't mentioned it to me and our boss hasn't brought it up with me.
It is probably relevant that we have had some differences of opinion in recent meetings where she has wanted to take some shortcuts that wouldn't be too ethical and I've had to challenge it politely but firmly. It's always been confirmed later that I did the right thing.
We have no set protocols around how these emails are managed as we've never needed them up til now and what I did would generally be considered perfectly normal in our organisation.
AIBU to thing what I did was perfectly appropriate or would you consider it unprofessional for a second person to email you in the circumstances I have described.