Action:

1) Check if anyone else has the table open or is viewing data in queries, forms, or reports based on the table.
2) When the other person closes the table, try changing the table design again:

a) If the Database window is not active, activate the Database window.
b) Click the 'Tables' tab in the Database window.
Tables tab
c) Click 'Design'. (The table opens in the Design view.)
d) Make the desired changes.
e) Select the 'File' menu and select 'Save'.

Question:

Responses: