VERIFIED SOLUTION i

FSS sortations and rates in MailStream Plus

Product affected:  MailStream Plus, all versions, all platforms
Starting Jan 22, 2017, even if mail pieces are prepared as part of a FSS (Flats Sequencing System) scheme bundle, the USPS now gives the rates based on what they would have got without FSS. 
So MailStream Plus first does a presort to determine the rates. 
Then does a second presort into the FSS schemes. 

The pieces to a CRRT or 5-digit may tend to remain together, but it's possible that they'll be somewhat scattered amongst bundles to the same FSS destination.  This is normal.

 
The bundle should be marked as FSS and the OEL will have FSSx. The Letter ‘x’ at the end of the OEL for an FSS OEL is used to denote the Rate that the mail piece pays.
Please refer to the DMM (Domestic Mail Manual) for all of the OEL values:
DMM 203 7.1.1 Exhibit 7.1.1 OEL Formats:
 
Two examples:
3-Digit (Nonautomation FSS flats)  * * * * * * * * * * * * * * * * * *SCH 5-DIGIT 06033 FSSG
This OEL means these FSS pieces received the 3-Digit nonauto rate as indicated by the G at the end
 
5-Digit Scheme (Automation FSS flats) * * * * * * * * * * * * * * SCH 5-DIGIT 12345 FSSD
The FSS pieces received the 5-Digit auto rate, which the D at the end indicates.
UPDATED:  July 18, 2019