Where the rejection reason in a 102R is COS – a COS was completed less than 20 days before the
required date of the COS it is requested that the effective date of that COS be advised on the 102R.
New Field Name: Effective Date of Last CoS
Length of Field: 10 Characters in Date Format
Data Definition: The date that the last CoS came into effect if the CoS effective date < 20 days.
Please see attachment which suggests a suitable place on the 102R message for this new field.