Diagnosis
Your text contravenes the following rule on connecting field names withinput/output fields (with periods):
A field name entry must be followed by at least two periods.

System Response
If this rule is not observed, the system displays a warning message.

Procedure
Since the formatting of these periods occurs dynamically at runtime,you must leave at least 2 blanks after the field name in the ABAP/4Dictionary. You then set the text length accordingly. The field namecan also end with a period and a blank or with two periods.
Please correct the text or the text length in accordance with thisrule.