Overview & background
If your 'Account Owner' has left the company or is on an extended leave or vacation, it's typically a good idea to change the 'Account Owner'. If another user in your company is made the account owner, they will become the de facto 'Owner' of all of the projects covered under the account.
While you can only have one 'Account Owner', you can have several 'Account Managers'. There's really no functional difference between the 'Account Owner' and 'Account Managers'-- each can create new projects under the account, add and remove users, and update billing information. Any 'Account Manager' can be made the 'Account Owner' at any point throughout.
How to change the Account Owner and/or Managers:
If you are an 'Account Owner' or 'Account Manager', the log-into the web version of Fieldwire. (app.fieldwire.com)
Select the 'People' tab from the account dashboard.
Select the appropriate 'Account Manager', and change their status to 'Account Owner'.
Note: Only other Account Owners and/or Managers can perform this action. 'Project' and 'Account users' will need to have their status be elevated to 'Account Manager', by the 'Account Owner' or 'Manager' prior to performing this action.
Be sure to update the credit card details if necessary. This help article speaks more to that: