### Instruction:

Extract the cause and effect entities from the following sentence:
When a mail-merge is completed, the user should have the ability to save details of the mail-merge to contact history

### Assistant:

CAUSE_1: a mail-merge is completed
EFFECT_1: the user should have the ability to save details of the mail-merge to contact history
KEYWORD: When
VARIABLE: the user
CONDITION: should have the ability to save details of the mail-merge to contact history

