The issue being discussed in this article is:
When a project is opened, you see the following error:
The following order number(s) in project do not exist as SI purchase orders:<order numbers>
Clear these order number(s) on project?
The following is the screenshot of the error:
The following is the cause:
This error occurs only for users who use QuickBooks purchase orders and not SI purchase orders.
This prompt appears because these order numbers are all on QuickBooks purchase orders and not SI purchase orders. SI is searching for these orders among SI purchase orders but is not finding them.
The following is the resolution:
1/ Ensure your SI Server is up-to-date with the latest build (12.14.2781.0 or later). You can check this by opening the SI Server Manager on your SI Server machine.
2/ Check in all projects to the SI Server.
3/ Open the SI Server Manager on your SI Server machine, click the Other tab, then click the following link.
4/ Click Yes on the following message.
If you cannot resolve this issue, please open a Support Ticket.