Gents,
I believe the note Note 159553 - Error messages BS042,BS043 addresses this issue.
I have been able to independently replicate this issue on an IDES system. (SAP ECC 6.0 SAP_APPL 605)
The business transaction / workflow control is actually irrelevant. The issue will occur for an Order status profile as pictured by Nye. I.e. there will be an error message:
"Status WIP is not allowed (ORD #)
Message no. BS043
Diagnosis
User status 'WIP' has reference number 70. In the current object status 'ORD 821468' the reference number of a status must be at least 80.
Procedure
You can only set user status whose reference number is at least 80."
Obviously information in this message is wrong, since COMP should allow a reference status as low as 20 in this case. The note mentioned explains that the highest status attained will determine the lowest status allowed according to the program logic ("status memory").
It is also not relevant if the Order is saved - if you only go into IW31 and change the user statuses in the Order in sequence, then go back from CLSD to COMP to WIP - the same message will occur.
