The invoice is getting rejected by "Invoice rejected because this timekeeper was unmapped by client: <Timekeeper ID>", for example, Invoice rejected because this timekeeper was unmapped by client: 123456 .

Overview: An unauthorized timekeeper for a Firm Office will cause any pending invoices with that previously authorized timekeeper (or invoices sent between CSM syncs) for a specific Firm office to be rejected. This is correct behavior.

However, when the client un-maps a timekeeper for one office, if there are any pending invoices from other offices with that timekeeper, they are also getting rejected.

This happens even though the timekeeper is mapped and authorized for the other Firm Offices.
This only affects any pending invoices from the same Firm with the same timekeeper on them. New invoices are not affected.

Solution:

1. The vendor should review if there are any timekeepers that are Unauthorized.  This can be done by clicking on Clients, then choose the client's name, and then click on the Timekeepers icon in the blue bar on the left side of the screen, select the Office and search for the Timekeeper.

2. Vendor should contact the client regarding questions about why a Timekeeper is Unauthorized.  Client may be able to review Unauthorized timekeepers and authorize it.  If not, the vendor can resubmit the timekeeper for authorization by first unchecking (or unassigning) the client from that timekeeper, and then checking (assigning) the client to that timekeeper.

3. Once the Timekeeper is Authorized, vendor should resubmit the rejected invoices.