Why does a message appear that the selected work items have expired?

The message The selected work items are no longer available. Please go back to the contract and select them again. appears when you open the purchase document add page after the items you selected from the contract have expired, and you are then taken to the contracts list.

The message appears in the following cases:

• You refreshed or reopened the add page more than 15 minutes after choosing the document type from Purchase Options.
• You opened an add page link copied by another user.

Solution:

• Go back to the contract from Construction → Contracts.
• Open the Work Items tab and select the items again.
• Click Purchase Options, then choose the document type.

Note: If you refresh the add page within 15 minutes of opening it, the selected items stay as they are.