Step 1:

Head to https://members.oa-bsa.org and Log in with your Arrow ID

Step 1.5:

Some Members may be directed to the Application Screen upon login if they have more than one Application 

Example - They have Access to LodgeMaster and a Member Portal

Click on The Member Portal Account you wish to Access

Step 2:

Once Logged you will be greeted with a Welcome Screen

Note - Welcome Screen will look a little different for Ordeal Members 

Click on Update your Profile 

Step 3:

Depending on Screen size you may need to scroll down to the Basic Information Area

Within this area you will find a box labeled - Scouting Member ID: 

This Box will show your Scouting Member ID:

Your Scouting Member ID is Also your OA ID Number