end scope terminator missing ,or period missing

we get a soc 8 error

you will get maxcc 8 while doing compaile

Unfortunately none of the answers are complete. A missing 
period doesn't always give compilation errors rather it 
depends upon at which place the period is missing. Ending a 
sentence with a period in COBOL is rather a good practice 
than a mandate for most of the code otherwise the code may 
be logically gonig in wrong way. But true, COBOL mandates 
that a period must be given at some places. for example, 
see the below syntax:

000000-PARA.
   IF ABC
      DISPLAY 'ABC'
   END-IF
   <COBOL SYNTAXES>
   <COBOL SYNTAXES>
   DISPLAY 'AT THE END OF PARA'
000000-EXIT.
   EXIT.

here it will give the compilation error as the compiler 
expects the last executable sentence before the 000000-EXIT 
to be ended with a period (.). However, if we end the last 
DISPLAY sentence with a period then the compilation will go 
fine without any error or warning.  

consider some other examples...
case#1
000000-PARA.
   IF ABC = 0
      DISPLAY 'ABC'
   ELSE
      NEXT SENTENCE
   END-IF
   DISPLAY 'BCD'
   DISPLAY 'CDE'
   DISPLAY 'AT THE END OF PARA'.
   DISPLAY 'BYE'.
000000-EXIT.
   EXIT.

case#2
000000-PARA.
   IF ABC = 0
      DISPLAY 'ABC'
   ELSE
      NEXT SENTENCE
   END-IF.
   DISPLAY 'BCD'.
   DISPLAY 'CDE'.
   DISPLAY 'AT THE END OF PARA'.
   DISPLAY 'BYE'.
000000-EXIT.
   EXIT.

Suppose ABC has a value 1 then we will get the output as 
follws:
for case#1
BYE

for case#2
BCD
CDE
AT THE END OF PARA
BYE

These are just some examples...bottomline is - if we don't 
give the scope terminator with periods then we may get 
compilation errors or we may get logical errors, depending 
upon where you missed the period. Enjoy!