Overview:
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one extra attribute ("unenrollAllowed") need to be set inside course-batch table , to identify un-enrollment is allowed for this open batch or not.This attribute can be set during create/update open batch.
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one extra attribute ("unenrollAllowed") need to be set inside course-batch table , to identify un-enrollment is allowed for this open batch or not.This attribute can be set during create/update open batch.
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