When multiple users share a single Microsoft Access database, and you try to open a specific form or report object, you receive the following error message:
You do not have exclusive access to the database at this time.
The following combination of settings and conditions triggers an object update:
Multiple users have the same database file open.
The Compact On Close database setting is selected.
The Track name AutoCorrect info and Perform name AutoCorrect database settings are both selected.
The form or report object you’re trying to open contains an embedded macro within a control or form event.
In this situation, Access tries to save the changes but cannot gain exclusive access to the object.
To prevent this error, do one of the following:
Use the split database approach so that each user has a local copy of the front-end database. For more information, see Split an Access database.
Clear the Compact On Close check box at File -> Options -> Current Database –> Application Options.
Clear the Perform Name AutoCorrect check box at File -> Options -> Current Database -> Name AutoCorrect Options.
Remove embedded macros from the form, or report and replace them with either named macros or VBA event procedures.