To unlock the FC25 Web Transfer Market, users must meet a series of conditions, which differ depending on whether you are logging in with a single account or multiple accounts on the same device. 

Below are the specific steps and requirements for unlocking the market:

I.Unlocking Conditions for a Single Account on the Same Device (Consecutive Two Days)

If your device is logged into single account, you need to follow these requirements:

1.Play at least five games daily (SQB or Rival, either is acceptable), for two consecutive days:

Each day, you must complete at least five games, whether SQB or Rival. Both types of games count. Ensure that you complete these five games within the same day to meet the system's requirements.

Consecutive two days: You must play at least five games on two consecutive days for the system to record your progress.

2.Log in to the Web App or Campanion once per day, for two consecutive days:

You need to log in at least once each day to either the Web App (web version) or Campanion (mobile app). You can choose either platform, but you must log in at least once daily.

Consecutive two days: You must log in every day for two consecutive days to meet the requirements.

3.Enable game time sharing in Web App or Campanion settings:

Go to the settings of the Web App or Campanion and enable the "Game Time Sharing" option. This setting allows the system to sync your game time across devices and makes it easier to meet the conditions.

II. Unlocking Conditions for Multiple Accounts on the Same Device (Consecutive Four Days)

If your device is logged into multiple accounts, the unlocking conditions will be stricter. You need to meet the following conditions:

1.Play at least five games daily (SQB or Rival, either is acceptable), for four consecutive days:

You need to play at least five games every day. Ensure you are using the account where you purchased coins, and complete a total of five games within the same day to meet the requirement.

Consecutive four days: You need to complete this task for four consecutive days to unlock the corresponding features.

2.Log in to the Web App or Campanion once per day, for four consecutive days:

For the account where you purchased coins, you must log in at least once each day to either the Web App or Campanion. You can use either the web version or the mobile app, but you must log in at least once per day.

Consecutive four days: Ensure that you log in every day for four consecutive days for the system to record your progress.

3.Enable game time sharing in Web App or Campanion settings:

Just like with the single account, each account must have the "Game Time Sharing" option enabled in the Web App or Campanion settings to ensure that your game progress and time are properly synchronized.

EA Web-App link: https://www.ea.com/ea-sports-fc/ultimate-team/web-app/