When trying to receive inventory for a serialized item I receive the following message:

Description: Incorrect procedure. The next serial number cannot be generated: the serial mask structure does not contain an incrementable segment.

I have no incremental segments in the mask it is 8 character-9 characters

The auto increment in the Inventory setup for serial is set to expiry date last

Does anyone know what can be causing this?

What can be causing this issue?